Front machine cover with built-in heat dissipation air duct

CN224766850UActive Publication Date: 2026-09-18CHONGQING YAGAI AUTO SUPPLIES CO LTD
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Patent Information

Application Number
CN202522367903.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-07
Publication Date
2026-09-18
Estimated Expiration
2035-11-07

AI Technical Summary

Technical Problem

[0004]针对现有技术中,内置散热风道的前机盖存在的散热开口结构简单、易被杂物堵塞和雨水灌入,且无法对气流进行有效管理、散热效率不可控的问题,本实用新型旨在提供一种结构经过改良的、能够有效解决上述问题的内置散热风道的前机盖

Benefits of technology

[0016] 1. This utility model solves the problems of simple front hood heat dissipation opening structure, easy blockage by debris and rainwater ingress in the prior art by setting up a filter screen, a baffle plate and a water collection trough that cooperates with the baffle plate. It achieves the technical effect of effectively filtering debris, collecting and draining rainwater, ensuring long-term stable heat dissipation of the air duct and protecting the internal components of the engine compartment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a front machine cover of built -in heat dissipation air duct belongs to automobile parts technical field, including main part, and the main part is opened with the front air duct, and the front air duct is pivoted and is installed with the baffle in, and the front machine cover of built -in heat dissipation air duct still includes adjusting mechanism, filter screen, water collecting tank, water baffle, hinge, torsional spring, flow guide strip, fixed plate and rubber strip, and adjusting mechanism sets up in the front air duct and is cooperated with the movement path of baffle, and filter screen is located at the air inlet of front air duct, and water baffle and water collecting tank are located in the front air duct, and the bottom of baffle is connected through hinge, and is equipped with torsional spring on hinge, and flow guide strip is located at the outer wall of baffle. The utility model effectively filters sundries, collects and discharges rainwater, guarantees that the air duct is long -term stable heat dissipation, and can optimize heat dissipation efficiency, improves the aerodynamic characteristics of car head.
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Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a front hood with built-in heat dissipation ducts. Background Technology

[0002] During vehicle operation, the engine compartment generates a significant amount of heat, which needs to be dissipated promptly to ensure that critical components such as the engine operate within a suitable temperature range. Traditional cooling methods primarily rely on the air intake grille at the front of the vehicle to draw in cool air, which is then carried away by airflow under the car. However, with the improvement of engine performance, especially in high-performance vehicles, the cooling efficiency of airflow under the car is limited. To enhance cooling, some vehicles have cooling openings or grilles directly installed on the hood. However, this simple opening or grille structure has significant drawbacks. On the one hand, in rainy or snowy weather or on rough roads, rainwater, mud, sand, stones, leaves, and other debris can enter the engine compartment without hindrance, potentially causing corrosion, short circuits, or physical damage to delicate electronic components or mechanical parts. On the other hand, this fixed opening cannot effectively manage airflow. At high speeds, the hot air exhausted from the engine compartment may create turbulence, interfering with the airflow on the hood surface. This can not only increase air resistance but may even generate lift under certain circumstances, which is detrimental to the vehicle's high-speed stability. Furthermore, the fixed opening cannot adjust the exhaust volume according to vehicle speed or cooling requirements, making it difficult to achieve the optimal balance between cooling efficiency and aerodynamic performance.

[0003] Therefore, this utility model proposes a front cover with built-in heat dissipation ducts to overcome the shortcomings of the prior art. Utility Model Content

[0004] In view of the problems of existing front hoods with built-in heat dissipation ducts, such as simple heat dissipation opening structure, easy blockage by debris and rainwater entry, inability to effectively manage airflow and uncontrollable heat dissipation efficiency, this utility model aims to provide a front hood with an improved structure that can effectively solve the above problems.

[0005] This utility model provides a front cover with a built-in heat dissipation duct, comprising: a main body, on which a front air duct is provided, and a baffle is pivotally installed in the front air duct; as well as an adjustment mechanism, a filter screen, a water collection tank, a water baffle, a hinge, a torsion spring, a guide strip, a fixing plate, and a rubber strip.

[0006] The adjustment mechanism is located within the front air duct and cooperates with the movement path of the baffle to limit the rotation angle of the baffle.

[0007] Furthermore, the filter screen is located at the air inlet of the front air duct, the baffle plate and the water collection tank are located inside the front air duct to collect rainwater, the bottom of the baffle plate is connected by the hinge, the hinge is provided with the torsion spring, the outer wall of the baffle plate is provided with the guide strip, the fixing plate is located on the inner wall of the front air duct, and the fixing plate is provided with the rubber strip.

[0008] Preferably, the adjustment mechanism includes a mounting base fixed to the inner wall of the front air duct, a sliding groove on the mounting base, a guide rail on the inner wall of the sliding groove, a slider slidably disposed in the sliding groove, and the adjustment mechanism further includes a pneumatic rod for driving the slider to slide in the sliding groove and fixing the position of the slider.

[0009] Preferably, the slider is provided with a rubber pad, and when the baffle rotates, it abuts against the slider through the rubber pad. The height position of the slider in the groove limits the rotation angle of the baffle, and the rubber pad is used to buffer the impact of the baffle.

[0010] Preferably, the front cover with the built-in heat dissipation duct also includes a clip, and the water collection tank is detachably installed in the front air duct via the clip.

[0011] Preferably, the water baffle is located above the hinge.

[0012] Preferably, the guide strip is disposed on the wall surface of the baffle facing the outside of the vehicle body.

[0013] Preferably, when the baffle is reset under the action of the torsion spring, the upper part of the baffle is attached to the fixing plate, and the rubber strip is installed on the fixing plate for cushioning.

[0014] Preferably, the filter is located at the airflow inlet end of the front air duct.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model solves the problems of simple front hood heat dissipation opening structure, easy blockage by debris and rainwater ingress in the prior art by setting up a filter screen, a baffle plate and a water collection trough that cooperates with the baffle plate. It achieves the technical effect of effectively filtering debris, collecting and draining rainwater, ensuring long-term stable heat dissipation of the air duct and protecting the internal components of the engine compartment.

[0017] 2. This utility model, by setting a rotatable baffle and using a torsion spring, a guide strip, and an adjustment mechanism for limiting the opening angle of the baffle, solves the problem in the prior art that the heat dissipation duct cannot actively manage the airflow, resulting in uncontrollable heat dissipation efficiency and potentially adverse effects on high-speed driving stability. It achieves the technical effect of passively opening according to airflow pressure, actively adjusting the maximum opening, and sorting the airflow, thereby optimizing heat dissipation efficiency and improving the aerodynamic characteristics of the vehicle front. Attached Figure Description

[0018] Figure 1 This is a perspective view of the front side of the front cover with the built-in heat dissipation duct proposed in this utility model;

[0019] Figure 2 This is a partial structural diagram of the front air duct of the front hood with built-in heat dissipation air duct proposed in this utility model;

[0020] Figure 3 This is a partial structural diagram of the filter screen of the front cover with built-in heat dissipation air duct proposed in this utility model.

[0021] Figure 4 This is a partial structural disassembly view of the baffle of the front hood with built-in heat dissipation duct proposed in this utility model;

[0022] Figure 5 This is a partial structural diagram of the adjustment mechanism of the front cover with built-in heat dissipation duct proposed in this utility model.

[0023] Legend:

[0024] 1. Main body; 2. Adjustment mechanism; 201. Mounting base; 202. Slide groove; 203. Guide rail; 204. Slider; 205. Rubber pad; 206. Pneumatic rod; 3. Front air duct; 4. Filter screen; 5. Water collection tank; 6. Buckle; 7. Water baffle; 8. Hinge; 9. Torsion spring; 10. Baffle; 11. Guide strip; 12. Fixing plate; 13. Rubber strip. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0026] Example:

[0027] Please refer to Figure 1As shown, the front hood with built-in cooling duct includes a main body 1, which is the hood body of the car. A front air duct 3 is provided on the main body 1. The front air duct 3 is used to guide hot air from the engine compartment to the outside. Figure 3 As shown, a filter 4 is fixedly connected to the air inlet of the front air duct 3. The filter 4 is used to intercept large solid particles in the airflow and prevent debris from entering the interior of the front air duct 3. Figure 2 and Figure 4 As shown, a baffle 10 is pivotally mounted inside the front air duct 3. The bottom of the baffle 10 is rotatably connected to the front air duct 3 via a hinge 8. The baffle 10 can rotate around the hinge 8 to open under the action of airflow. A torsion spring 9 is provided on the hinge 8. The torsion spring 9 is used to automatically reset and close the baffle 10 when the airflow pressure disappears. To prevent the baffle 10 from causing an impact when resetting, a fixing plate 12 is fixedly connected to the inner wall of the front air duct 3. A rubber strip 13 is fixedly connected to the fixing plate 12. When the baffle 10 resets under the action of the torsion spring 9, the upper part of the baffle 10 adheres to the rubber strip 13. The rubber strip 13 plays a role in buffering and sealing. To manage the exhaust airflow, a guide strip 11 is fixedly connected to the outer wall of the baffle 10. The guide strip 11 is set on the wall of the baffle 10 facing the outside of the vehicle body and is used to guide the high-speed airflow flowing through the baffle 10. Figure 2 and Figure 3 As shown, to address the issue of rainwater ingress, a baffle plate 7 and a water collection trough 5 are also installed inside the front air duct 3. The baffle plate 7 is located above the hinge 8 and is used to block rainwater from entering the front air duct 3. After being intercepted by the baffle plate 7, the rainwater flows into the water collection trough 5. The water collection trough 5 is detachably installed inside the front air duct 3 via a clip 6, facilitating regular cleaning of the water collection trough 5. Figure 2 and Figure 5 As shown, in order to control the opening angle of the baffle 10, the front cover with built-in heat dissipation air duct also includes an adjustment mechanism 2. The adjustment mechanism 2 is set in the front air duct 3 and cooperates with the movement path of the baffle 10 to limit the maximum opening angle of the baffle 10.

[0028] Please refer to Figure 2 and Figure 5The adjustment mechanism 2 includes a mounting base 201, which is fixedly connected to both sides of the inner wall of the front air duct 3. The mounting base 201 is in close contact with the side of the baffle 10. A vertical sliding groove 202 is provided on the mounting base 201. To ensure smooth and stable sliding, a guide rail 203 is fixedly connected to the inner wall of the sliding groove 202. A slider 204 is slidably connected in the sliding groove 202. The slider 204 moves stably up and down in the sliding groove 202 by cooperating with the guide rail 203. A rubber pad 205 is fixedly connected to the top of the slider 204 on the side facing the baffle 10. The adjustment mechanism 2 also includes a pneumatic rod 206, which serves as a power and locking element. The cylinder of the pneumatic rod 206 is fixedly connected to the mounting base 201, and the rod end is movably connected to the slider 204. The pneumatic rod 206 is used to drive the slider 204 in the sliding groove 202. The slider 204 slides along the guide rail 203 and is fixed at any height within the groove 202. In operation, when the baffle 10 rotates around the hinge 8 under the action of airflow, the upper edge of the baffle 10 moves to below the rubber pad 205. When the baffle 10 rotates, it abuts against the slider 204 through the rubber pad 205. This engagement method causes the rotation stroke of the baffle 10 to be blocked by the slider 204 and stop. The rubber pad 205 is used to buffer the impact of the baffle 10 on the slider 204 and prevent the baffle 10 from deforming due to excessive impact force. Since the position of the slider 204 is adjustable, the maximum rotation angle of the baffle 10 can be limited by controlling the different height positions of the slider 204 within the groove 202 through the pneumatic rod 206, thereby realizing the control of exhaust volume and the guidance and management of airflow.

[0029] As a preferred embodiment, please refer to Figure 3 In order to intercept debris, filter screen 4 is fixedly connected to the main body 1. Filter screen 4 is located at the airflow inlet end of the front air duct 3. Filter screen 4 is a grid structure used to intercept large solid particles in the airflow and prevent debris from entering the front air duct 3 and hitting the baffle 10 or the adjustment mechanism 2.

[0030] As another preferred embodiment, please refer to Figure 2 , Figure 3 and Figure 4 To facilitate rainwater management and easy cleaning, the baffle plate 7 is fixedly connected inside the front air duct 3. The baffle plate 7 is located above the hinge 8. The inclined setting of the baffle plate 7 is used to block and guide rainwater into the water collection tank 5. The water collection tank 5 is located below the baffle plate 7. The water collection tank 5 is detachably installed inside the front air duct 3 by means of a buckle 6. The buckle 6 is an elastic structure. This detachable connection method makes it easy for operators to periodically remove the water collection tank 5 to empty the water inside.

[0031] As another preferred embodiment, please refer to Figure 4To optimize the exhaust airflow, the guide strip 11 is fixedly connected to the wall of the baffle 10 facing the outside of the vehicle body. The guide strip 11 is arranged along the airflow direction to sort out the high-speed airflow flowing through the baffle 10 and reduce the impact of turbulence on the vehicle body.

[0032] As another preferred embodiment, please refer to Figure 4 To ensure reliable closing and buffering of the baffle 10, a fixed plate 12 is fixedly connected to the inner wall of the front air duct 3. The fixed plate 12 is located on the upper movement path of the baffle 10. A rubber strip 13 is installed on the fixed plate 12 on the side facing the baffle 10. When the airflow pressure decreases and the baffle 10 is reset and closed under the action of the torsion spring 9, the upper part of the baffle 10 will impact and adhere to the rubber strip 13. The rubber strip 13 buffers and protects the closing action of the baffle 10 to prevent rigid impact.

[0033] Working principle:

[0034] When the car is moving, external airflow enters from the front of the car and flows under the main body 1. Before entering the front air duct 3, the airflow first passes through the filter 4 at the air intake. The filter 4 intercepts large solid particles carried in the airflow to prevent debris from entering the interior of the front air duct 3. The filtered airflow continues to flow, carrying away the heat from the engine and other heat-generating components, forming a high-temperature and high-pressure hot airflow. The density of the high-temperature and high-pressure hot airflow decreases and it flows under pressure to the lower part of the front air duct 3. The pressure of the hot airflow pushes the baffle 10, overcoming the preload of the torsion spring 9, causing the baffle 10 to rotate upward around the hinge 8 at the bottom and open. The hot airflow is then discharged from the front air duct 3. When the airflow is discharged, it flows through the baffle 10 toward the wall of the car body. At this time, the guide strip 11 fixedly connected to the outer wall of the baffle 10 sorts the high-speed discharged airflow, prevents the generation of turbulence, guides the airflow, and increases the downforce at the front of the car, thus realizing the dual functions of heat dissipation and airflow management.

[0035] The adjustment mechanism 2 is located inside the front air duct 3 and cooperates with the movement path of the baffle 10. The adjustment mechanism 2 includes mounting seats 201 fixedly connected to both sides of the inner wall of the front air duct 3. The mounting seats 201 are provided with vertical slide grooves 202. The inner wall of the slide grooves 202 is fixedly connected to guide rails 203. The slider 204 is slidably connected to the slide grooves 202 by the guide rails 203. The cylinder of the pneumatic rod 206 is fixedly connected to the mounting seats 201, and the rod end is movably connected to the slider 204. The pneumatic rod 206 is used to drive the slider 204 to slide up and down in the slide grooves 202 and fix the slider 204 at any height position in the slide grooves 202. When the baffle 10 is rotated and opened under the action of hot airflow, the upper edge of the baffle 10 will move upward until it abuts against the slider 204 through the rubber pad 205 fixedly connected to the slider 204. At this time, the position of the slider 204 limits the maximum rotation angle of the baffle 10. The rubber pad 205 plays a role in buffering the movement during this process. The impact prevents the baffle 10 from deforming due to excessive flipping force. The maximum opening angle of the baffle 10 can be actively controlled by adjusting the height of the slider 204 in the slide groove 202 through the air pressure rod 206, thereby adjusting the exhaust volume of the front air duct 3. When driving in the rain, rainwater may enter the front air duct 3. At this time, the baffle 7 located above the hinge 8 will block the rainwater and prevent it from penetrating. The blocked rainwater flows into the water collection tank 5. The water collection tank 5 is detachably installed in the front air duct 3 by the buckle 6, which facilitates regular cleaning of the water collection tank 5. When the car decelerates or stops, the airflow pressure in the front air duct 3 decreases. The restoring force provided by the torsion spring 9 is greater than the airflow pressure. The torsion spring 9 pushes the baffle 10 to rotate in the opposite direction around the hinge 8 to reset until the upper part of the baffle 10 is attached to the fixing plate 12. The rubber strip 13 installed on the fixing plate 12 plays a role in buffering protection and sealing when the baffle 10 is closed, preventing the baffle 10 from having a rigid collision with the fixing plate 12.

Claims

1. A front cover with built-in heat dissipation duct, including a main body (1), a front air duct (3) is provided on the main body (1), and a baffle (10) is pivotally installed in the front air duct (3); Its features are, The front hood also includes an adjustment mechanism (2) disposed in the front air duct (3) and cooperating with the movement path of the baffle (10). The air inlet of the front air duct (3) is provided with a filter screen (4). The front air duct (3) is also provided with a water collection trough (5) and a water baffle (7) for collecting rainwater. The bottom of the baffle (10) is connected to the front air duct (3) by a hinge (8). The hinge (8) is provided with a torsion spring (9) for resetting the baffle (10). The outer wall of the baffle (10) is provided with a guide strip (11). The inner wall of the front air duct (3) is provided with a fixing plate (12). The fixing plate (12) is provided with a rubber strip (13).

2. The front hood with built-in heat dissipation duct according to claim 1, characterized in that, The adjustment mechanism (2) includes a mounting base (201) fixed to the inner wall of the front air duct (3). The mounting base (201) is provided with a sliding groove (202). The inner wall of the sliding groove (202) is provided with a guide rail (203). A slider (204) is slidably provided in the sliding groove (202). The adjustment mechanism (2) also includes a pneumatic rod (206) for driving the slider (204) to slide in the sliding groove (202) and fixing the position of the slider (204).

3. The front hood with built-in heat dissipation duct according to claim 2, characterized in that, The slider (204) is provided with a rubber pad (205). When the baffle (10) rotates, it abuts against the slider (204) through the rubber pad (205). The height position of the slider (204) in the groove (202) limits the rotation angle of the baffle (10). The rubber pad (205) is used to buffer the impact of the baffle (10).

4. The front hood with built-in heat dissipation duct according to claim 1, characterized in that, The water collection tank (5) is detachably installed in the front air duct (3) by means of a snap fastener (6).

5. The front hood with built-in heat dissipation duct according to claim 1, characterized in that, The baffle plate (7) is located above the hinge (8) and is used to block rainwater from entering the front air duct (3).

6. The front hood with built-in heat dissipation duct according to claim 1, characterized in that, The guide strip (11) is disposed on the wall surface of the baffle (10) facing the outside of the vehicle body, and is used to guide the airflow flowing through the baffle (10).

7. The front hood with built-in heat dissipation duct according to claim 1, characterized in that, The fixing plate (12) is fixed to the inner wall of the front air duct (3). When the baffle (10) is reset under the action of the torsion spring (9), the upper part of the baffle (10) is attached to the fixing plate (12). The rubber strip (13) is installed on the fixing plate (12) for buffering.

8. The front hood with built-in heat dissipation duct according to claim 1, characterized in that, The filter (4) is located at the airflow inlet end of the front air duct (3) and is used to intercept large solid particles in the airflow.