Electric automobile cabin lower protection plate with flow guide function and automobile
By designing the lower guard plate of the electric vehicle nacelle with the flow diversion function, the inclined structure and spoiler section are used to optimize the airflow diversion, the resistance problem formed by the vortex flow when the high-speed airflow is flowing is solved, and the effect of reducing wind resistance and energy consumption and enhancing power economy is achieved.
Patent Information
- Application Number
- CN202421720259.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-19
AI Technical Summary
The existing engine lower guard plate forms vortex when high-speed airflow flows, resulting in greater resistance and affecting the car's driving.
A lower guard plate of an electric vehicle nacelle with a flow-driving function is designed, including a first section, a second section and a third section sequentially connected, a second section arranged inclined, a transition connecting the first section and a third section, a third section extending away from one end of the second section and a forward wheel cover, a spoiler and a reinforcement structure are provided to optimize air flow diversion.
By guiding the airflow to flow, the air flow can be smooth, effectively reduce the vehicle's wind resistance, reduce the car's driving resistance and energy consumption, enhance the car's power economy, and increase the range of 5-8km.
Smart Images

Figure CN222756531U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile lower guard plates, and more specifically relates to an electric vehicle cabin lower guard plate with a diversion function and an automobile. Background Art
[0002] The engine underguard is an engine protection device designed according to different vehicle models. Its design is first to prevent mud from wrapping around the engine, which would cause poor heat dissipation of the engine. Secondly, it is to prevent damage to the engine caused by bumps on the uneven road surface during driving. Through a series of designs, the engine service life is extended and the car is prevented from being stranded due to engine damage caused by external factors during travel. Existing engine guards mainly consider protection performance, but do not consider wind resistance. When high-speed air flows through the lower area of the vehicle cabin, vortices are formed, causing greater resistance and affecting the driving of the car. Utility Model Content
[0003] The purpose of the utility model is to provide an electric vehicle cabin lower guard plate with a diversion function to address the deficiencies in the prior art, so as to solve the problem that when the existing high-speed airflow flows through the lower area of the vehicle cabin, vortices are formed, causing greater resistance and affecting the driving of the vehicle.
[0004] In order to achieve the above-mentioned purpose, the utility model provides an electric vehicle cabin lower guard plate with a diversion function, comprising:
[0005] The first, second and third segments are connected in sequence;
[0006] One end of the first section away from the second section is connected to the calf protection plate;
[0007] The second section is inclined to transitionally connect the first section and the third section;
[0008] The third section is away from one end of the second section and extends toward the front wheel cover, and is arranged in parallel at the lower side of the front wheel cover.
[0009] Optionally, the second section forms an angle of 160°-170° with the horizontal plane.
[0010] Optionally, the third section and the second section form a U-shaped structure with the opening facing the rear of the vehicle.
[0011] Optionally, a spoiler is provided at one end of the second section close to the third section.
[0012] Optionally, the spoiler is a first convex groove facing the ground, and a water leakage hole is arranged in the first convex groove.
[0013] Optionally, a plurality of reinforcing structures are arranged at intervals on the second section.
[0014] Optionally, one end of the reinforcement structure is close to the first section, and the other end of the reinforcement structure extends toward the third section.
[0015] Optionally, the reinforcement structure is a second protruding groove facing the ground.
[0016] Optionally, a first mounting hole and a hook are provided at one end of the first section away from the second section;
[0017] Second mounting holes are respectively provided on both sides of the second section and the third section.
[0018] The utility model also provides a car, comprising:
[0019] The above-mentioned electric vehicle cabin lower guard plate with diversion function.
[0020] The utility model provides an electric vehicle cabin lower guard plate with a diversion function, and its beneficial effects are:
[0021] The lower guard plate of the electric vehicle cabin is arranged in the lower area of the electric vehicle cabin, and is used to increase and guide the airflow so that the air flows smoothly through the area, which can effectively reduce the vehicle's wind resistance, thereby reducing the vehicle's driving resistance and energy consumption, enhancing the vehicle's power economy, and increasing the cruising range by 5-8km.
[0022] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.
[0024] Figure 1 A schematic structural diagram of a lower guard plate of an electric vehicle cabin with a diversion function according to an embodiment of the utility model is shown.
[0025] Figure 2 A top view of a lower guard plate of an electric vehicle cabin with a diversion function according to an embodiment of the utility model is shown.
[0026] Figure 3 A schematic side view of a lower guard plate of an electric vehicle cabin with a diversion function according to an embodiment of the utility model is shown.
[0027] Figure 4 The figure shows the use state of the lower guard plate of the cabin of an electric vehicle with a diversion function according to an embodiment of the utility model.
[0028] Description of reference numerals:
[0029] 1. First section; 2. Second section; 3. Third section; 4. First mounting hole; 5. Second mounting hole; 6. Spoiler; 7. Reinforced structure. DETAILED DESCRIPTION
[0030] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.
[0031] like Figure 1-4 As shown, an electric vehicle cabin lower guard plate with a diversion function comprises:
[0032] The first segment 1, the second segment 2 and the third segment 3 are connected in sequence;
[0033] One end of the first section 1 away from the second section 2 is connected to the calf protection plate;
[0034] The second section 2 is inclined to transitionally connect the first section 1 and the third section 3;
[0035] The third section 3 is away from one end of the second section 2 and extends toward the front wheel housing, and is arranged in parallel at the lower side of the front wheel housing.
[0036] Specifically, the lower guard plate of the electric vehicle cabin is arranged in the lower area of the electric vehicle cabin to increase and guide the airflow so that the air flows smoothly through the area, which can effectively reduce the vehicle's wind resistance (reduce the vehicle's wind resistance coefficient by 0.01), thereby reducing the vehicle's driving resistance and energy consumption, enhancing the vehicle's power economy, and increasing the cruising range by 5-8km.
[0037] In this embodiment, the second section 2 forms an angle of 160°-170° with the horizontal plane.
[0038] Specifically, a suitable inclination angle is set to ensure the diversion effect while avoiding affecting the chassis height.
[0039] In this embodiment, the third section 3 and the second section 2 form a U-shaped structure with the opening facing the rear of the vehicle.
[0040] Specifically, it adapts to the layout of some vehicle models and makes reasonable avoidance to avoid interfering with the switching transmission system or lowering the chassis height.
[0041] In this embodiment, a spoiler 6 is provided at one end of the second section 2 close to the third section 3 .
[0042] Specifically, due to the avoidance design, the airflow passing through the uncovered area will be drawn into the cabin, generating a vortex and increasing wind resistance. The airflow is disturbed by the spoiler 6 to prevent the airflow from being drawn into the rear area and impacting the lower part of the motor to generate a vortex, thereby reducing wind resistance.
[0043] In this embodiment, the spoiler 6 is a first convex groove facing the ground, and a water leakage hole is arranged in the first convex groove.
[0044] Specifically, the lower guard plate is formed by thermoplastic or stamping, and the first convex groove is used to spoil the flow while reducing the processing cost, and the water leakage hole is used to prevent water accumulation in the lower guard plate.
[0045] Furthermore, the lower guard plate is a plastic guard plate.
[0046] In this embodiment, a plurality of reinforcing structures 7 are arranged at intervals on the second section 2 .
[0047] Specifically, the rigidity and supporting strength of the lower guard plate are improved by reinforcing the structure 7 .
[0048] In this embodiment, one end of the reinforcing structure 7 is close to the first section 1 , and the other end of the reinforcing structure 7 extends toward the third section 3 .
[0049] Specifically, the reinforcement structure 7 increases the rigidity and support strength of the third section 3 at the same time.
[0050] In this embodiment, the reinforcement structure 7 is a second protruding groove facing the ground.
[0051] Specifically, the second groove is convenient for integral molding.
[0052] In this embodiment, a first mounting hole 4 and a hook are provided at one end of the first section 1 away from the second section 2;
[0053] Second mounting holes 5 are respectively provided on both sides of the second section 2 and the third section 3 .
[0054] Specifically, the first mounting hole 4, the second mounting hole 5 and the hook are arranged along the outer circumference to adapt to vehicle installation and use.
[0055] The utility model also provides a car, comprising:
[0056] The above-mentioned electric vehicle cabin lower guard plate with diversion function.
[0057] In this embodiment, when a lower guard plate of an electric vehicle cabin with a diversion function is used, taking driving as an example:
[0058] The first section 1 is fixed to the calf protection plate through the first mounting hole 4 and the hook, and the second section 2 and the third section 3 are connected to the front wheel cover through the second mounting hole 5;
[0059] The lower guard plate has a slope-like structure transition from front to back, with an angle of 160°-170° between the slope and the horizontal plane. The end of the lower guard plate is on the same horizontal line and parallel to the lower surface of the power battery, and is lower than the lower surface of the motor, so that the airflow can flow smoothly through the lower area of the cabin.
[0060] Due to vehicle structural limitations, the rear of the lower guard plate does not completely cover the lower part of the cabin. The airflow passing through the uncovered area will be drawn into the cabin, generating a vortex and increasing wind resistance. Therefore, a spoiler 6 is designed on the lower guard plate of the cabin. The spoiler 6 guides the airflow to prevent the airflow from being drawn into the exposed area and impacting the lower part of the motor to generate a vortex, thereby reducing wind resistance.
[0061] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims
1. An electric vehicle cabin lower guard plate with a diversion function, characterized in that: include: The first, second and third segments are connected in sequence; One end of the first section away from the second section is connected to the calf protection plate; The second section is inclined to transitionally connect the first section and the third section; The third section is away from one end of the second section and extends toward the front wheel cover, and is arranged in parallel at the lower side of the front wheel cover.
2. The electric vehicle cabin lower guard plate with diversion function according to claim 1 is characterized in that: The second section forms an angle of 160°-170° with the horizontal plane.
3. The electric vehicle cabin lower guard plate with diversion function according to claim 1 is characterized in that: The third section and the second section form a U-shaped structure with the opening facing the rear of the vehicle.
4. The electric vehicle cabin lower guard plate with diversion function according to claim 3 is characterized in that: A spoiler is disposed at one end of the second section close to the third section.
5. The electric vehicle cabin lower guard plate with diversion function according to claim 4 is characterized in that: The spoiler is a first convex groove facing the ground, and a water leakage hole is arranged in the first convex groove.
6. The electric vehicle cabin lower guard plate with diversion function according to claim 1, characterized in that: A plurality of reinforcing structures are arranged at intervals on the second section.
7. The electric vehicle cabin lower guard plate with diversion function according to claim 6, characterized in that: One end of the reinforcement structure is close to the first section, and the other end of the reinforcement structure extends toward the third section.
8. The electric vehicle cabin lower guard plate with diversion function according to claim 6, characterized in that: The reinforcement structure is a second convex groove facing the ground.
9. The electric vehicle cabin lower guard plate with diversion function according to claim 1, characterized in that: A first mounting hole and a hook are provided at one end of the first section away from the second section; and second mounting holes are provided at both sides of the second section and the third section respectively.
10. An automobile, characterized in that: include: An electric vehicle cabin lower guard plate with a flow diversion function according to any one of claims 1 to 9.