Diffuser and vehicle with same

Abstract

The diffuser is used for the vehicle and comprises a body, the body comprises a first section and a second section which are sequentially arranged and connected in the direction of the vehicle from front to back, the first section and the second section are split pieces, a part of the first section protrudes towards the lower side to form a protruding part, and the first section is provided with a plurality of through holes; the second section inclines upwards in the direction from the front section to the rear section of the body. According to the diffuser disclosed by the embodiment of the utility model, the body comprises the first section and the second section which are split, so that the body is convenient to produce and process, and the part of the first section protrudes towards the lower side to form the protruding part, so that a separation area of wheels can be reduced, and the problem that eddy current in the separation area is uncontrolled is solved; the second section inclines upwards in the direction from the front section to the rear section of the body, the separation point of airflow and the leaving direction of the airflow can be controlled, a better upward rolling vortex state is achieved, accurate control over the upward rolling vortex at the tail of the vehicle is achieved, wind resistance at the tail of the vehicle is reduced, the endurance mileage is increased, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a diffuser and a vehicle with the diffuser. Background Art

[0002] With the vigorous development of new energy vehicles, people pay more and more attention to energy conservation and emission reduction. Reducing the air resistance of the whole vehicle has become one of the most cost-effective energy-saving and emission reduction technologies recognized in the industry. The precise control of the vortex on the rear of the vehicle has gradually become a current industry problem. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a diffuser, which can achieve precise control of the vortex on the rear of the vehicle, reduce the wind resistance of the rear of the vehicle, increase the high-speed cruising range, and reduce costs.

[0004] The utility model also provides a vehicle, wherein the vehicle comprises the diffuser mentioned above.

[0005] The diffuser according to an embodiment of the utility model is used for a vehicle, comprising: a main body, wherein the main body comprises a first section and a second section which are sequentially arranged and connected in a direction from front to rear of the vehicle, wherein the first section and the second section are separate parts, wherein a portion of the first section protrudes toward the lower side to form a protrusion, and the second section is inclined upward in a direction from the front section to the rear section of the main body.

[0006] According to the diffuser of the embodiment of the utility model, the main body includes a first section and a second section which are separated, so that the production and processing of the main body can be facilitated to meet the processing requirements of different shapes of the first section and the second section. Part of the first section protrudes toward the lower side to form a protrusion, which can make the air pressure around the protrusion higher than the air pressure near the wheel, so that the airflow flows toward both sides of the vehicle in the left and right directions when flowing to the first section, thereby reducing the separation area of ​​the wheel and reducing the problem of uncontrolled vortex in the separation area of ​​the wheel. The second section is inclined upward in the direction from the front section to the rear section of the main body, which can control the separation point and departure direction of the airflow, thereby achieving a better upper vortex flow state, realizing precise control of the upper vortex at the rear of the vehicle, reducing the wind resistance at the rear of the vehicle, improving high-speed cruising range, and reducing costs.

[0007] In addition, the diffuser according to the utility model may also have the following additional technical features:

[0008] In some embodiments, the vehicle has a rear subframe, the diffuser is located below the rear subframe and further includes: a mounting bracket connecting the body and the rear subframe.

[0009] In some embodiments, the mounting bracket includes: a first mounting bracket and a second mounting bracket, the first mounting bracket and the second mounting bracket are spaced apart in the front-rear direction of the vehicle, the first mounting bracket is used to connect the rear subframe and the first section, and the second mounting bracket is used to connect the rear subframe and the second section.

[0010] In some embodiments, the first mounting bracket is connected to the first section via a fastener; and / or the second mounting bracket is connected to the second section via a fastener.

[0011] In some embodiments, the mounting bracket includes: a connecting bracket, an end of the first section close to the second section and / or an end of the second section close to the first section are connected to the rear subframe through the connecting bracket, and the connecting bracket is connected to the first section and / or the second section via a fastener.

[0012] In some embodiments, the main body has a plurality of mounting holes, the plurality of mounting holes comprising a plurality of first mounting holes and a plurality of second mounting holes, the plurality of first mounting holes being arranged at intervals along the circumferential direction of the main body for connecting to the battery terminal bracket, and the second mounting holes being arranged in the second section for connecting to the luggage storage box.

[0013] In some embodiments, at least one of the first section and the second section is provided with a reinforcing rib, and the reinforcing rib extends along the front-rear direction of the vehicle.

[0014] In some embodiments, the first section and the second section are connected by a fastener.

[0015] In some embodiments, the first section is provided with avoidance gaps for avoiding wheels on both sides along the left-right direction of the vehicle, and the avoidance gaps are located at one end of the first section close to the second section.

[0016] The utility model also provides a vehicle having the above embodiment.

[0017] According to the vehicle of the embodiment of the utility model, by being provided with the above-mentioned diffuser, the main body includes a first section and a second section which are separated, so that the production and processing of the main body can be facilitated to meet the processing requirements of different shapes of the first section and the second section. Part of the first section protrudes toward the lower side to form a protrusion, which can make the air pressure around the protrusion higher than the air pressure near the wheel, so that the airflow flows toward both sides of the vehicle in the left and right directions when flowing to the first section, thereby reducing the separation area of ​​the wheel and reducing the problem of uncontrolled vortex in the separation area of ​​the wheel. The second section is inclined upward in the direction from the front section to the rear section of the main body, which can control the separation point of the airflow and the departure direction of the airflow, thereby achieving a better upper vortex flow state, realizing precise control of the upper vortex at the rear of the vehicle, reducing the wind resistance at the rear of the vehicle, improving the high-speed cruising range, and reducing costs.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a perspective view of a portion of a vehicle according to an embodiment of the present utility model;

[0021] Figure 2 is a top view of a diffuser according to an embodiment of the utility model;

[0022] Figure 3 It is a cross-sectional schematic diagram of a diffuser according to an embodiment of the utility model.

[0023] Reference numerals:

[0024] 100. Diffuser;

[0025] 1. body; 11. first section; 111. protrusion; 112. avoidance notch; 12. second section; 13. mounting hole; 131. first mounting hole; 1311. first sub-mounting hole; 1312. second sub-mounting hole; 132. second mounting hole; 14. reinforcing rib;

[0026] 2. Mounting bracket; 21. First mounting bracket; 22. Second mounting bracket; 23. Connecting bracket;

[0027] 200, rear subframe;

[0028] 300. Luggage storage box. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The diffuser 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0034] like Figure 1 and Figure 2 As shown, a diffuser 100 according to an embodiment of the present invention is used for a vehicle and includes a body 1 .

[0035] Specifically, refer to the attached Figure 1 and attached Figure 2 As shown, the body 1 includes a vehicle in a front-to-rear direction (such as Figure 2The first section 11 and the second section 12 are sequentially arranged and connected on the main body 1, and the first section 11 and the second section 12 are split parts. Part of the first section 11 protrudes toward the lower side to form a protrusion 111, and the second section 12 is inclined upward in the direction from the front section to the rear section of the main body 1. It should be noted that the design of the split part can facilitate the production and processing of the main body 1, and can meet the processing requirements of the different shapes of the first section 11 and the second section 12 on the basis of ensuring the flatness of the vehicle chassis, thereby realizing the different functions of the first section 11 and the second section 12.

[0036] It is understandable that, referring to the Figure 2 and attached Figure 3 As shown, the first section 11 is located at the front side of the second section 12, and a portion of the first section 11 protrudes downward to form a protruding portion 111. The protruding portion 111 protrudes toward the lower side of the vehicle, which can generate high pressure around the protruding portion 111. The air pressure around the protruding portion 111 is higher than the air pressure near the wheel. The airflow tends to flow from high pressure to low pressure, so that when the airflow flows to the first section 11, it moves toward the left and right directions of the vehicle (such as Figure 2 The air resistance of the vehicle can be reduced, the control of the vortex at the rear of the vehicle can be improved, the high-speed cruising range can be improved, the cost can be reduced, and the rear wheel air dam added in the prior art is not required, thereby further reducing the production cost of the vehicle.

[0037] Further, see Attachment Figure 2 and attached Figure 3 As shown, the second section 12 is inclined upward in the direction from the front section to the rear section of the main body 1. Since the airflow flows along the contour of the second section 12, the separation point and the departure direction of the airflow can be controlled, thereby achieving a better upper vortex flow state, realizing precise control of the upper vortex at the rear of the vehicle, reducing the wind resistance at the rear of the vehicle, further improving high-speed cruising range, and reducing costs.

[0038] It should be noted that the curvatures of the first section 11 and the second section 12 can be adjusted according to different vehicle models to meet the airflow direction required by different vehicle models, and no excessive restrictions are made here.

[0039] In a specific example, compared with a conventional diffuser structure (drag reduction of about 7 counts), the drag reduction of the rear part of the diffuser 100 of the utility model can reach 16 counts. Under the condition of the same power and constant speed of 100 km / h, the cruising range can be increased by 10 km, which is equivalent to the cruising range of 1.5 kWh of electricity.

[0040] According to the diffuser 100 of the embodiment of the utility model, the main body 1 includes a first section 11 and a second section 12 which are separated, so that the production and processing of the main body 1 can be facilitated to meet the processing requirements of different shapes of the first section 11 and the second section 12. Part of the first section 11 protrudes toward the lower side to form a protrusion 111, which can make the air pressure around the protrusion 111 higher than the air pressure near the wheel, so that when the airflow flows to the first section 11, it flows toward both sides of the vehicle in the left and right directions, thereby reducing the separation area of ​​the wheel and reducing the problem of uncontrolled vortex in the separation area of ​​the wheel. The second section 12 is inclined upward in the direction from the front section to the rear section of the main body 1, which can control the separation point and departure direction of the airflow, thereby achieving a better upper vortex flow state, realizing precise control of the upper vortex at the rear of the vehicle, reducing the wind resistance at the rear of the vehicle, improving the high-speed cruising range, and reducing costs.

[0041] In some embodiments of the present invention, refer to the attached Figure 1 As shown, the vehicle has a rear subframe 200, the diffuser 100 is located below the rear subframe 200 and also includes a mounting bracket 2, the mounting bracket 2 connects the body 1 and the rear subframe 200, and the body 1 and the rear subframe 200 can be fixed by the mounting bracket 2, so that the diffuser 100 is fixed on the vehicle body 1, thereby realizing the installation of the diffuser 100.

[0042] In some embodiments of the present invention, refer to the attached Figure 1 and attached Figure 2 As shown, the mounting bracket 2 includes a first mounting bracket 21 and a second mounting bracket 22. The first mounting bracket 21 and the second mounting bracket 22 are arranged in the front-rear direction of the vehicle (eg Figure 2 The first mounting bracket 21 is used to connect the rear sub-frame 200 and the first section 11, and the second mounting bracket 22 is used to connect the rear sub-frame 200 and the second section 12. By setting the first mounting bracket 21 and the second mounting bracket 22, the first section 11 and the rear sub-frame 200 and the second section 12 and the rear sub-frame 200 can be connected respectively, thereby improving the connection reliability between the body 1 and the rear sub-frame 200, and further ensuring that the diffuser 100 is fixed to the vehicle body 1. It should be noted that the first mounting bracket 21 and the second mounting bracket 22 are both spaced apart in the left-right direction of the vehicle, which can respectively improve the reliability of the connection between the first section 11 and the second section 12 and the rear sub-frame 200.

[0043] In some embodiments of the present invention, the first mounting bracket 21 is connected to the first section 11 by a fastener, so that the connection between the first mounting bracket 21 and the first section 11 is simple and has strong stability, thereby improving the stability and reliability of the connection between the first mounting bracket 21 and the first section 11. For example, the fastener may be a bolt.

[0044] Furthermore, the second mounting bracket 22 is connected to the second section 12 by a fastener, so that the connection between the second mounting bracket 22 and the second section 12 is simple and has strong stability, thereby improving the stability and reliability of the connection between the second mounting bracket 22 and the second section 12. For example, the fastener may be a bolt.

[0045] In some embodiments of the present invention, refer to the attached Figure 1 and attached Figure 2 As shown, the mounting bracket 2 includes a connecting bracket 23, and one end of the first section 11 close to the second section 12 and / or one end of the second section 12 close to the first section 11 is connected to the rear sub-frame 200 through the connecting bracket 23. By setting the connecting bracket 23, the body 1 and the rear sub-frame 200 can be connected, and the stability and reliability of the connection between the diffuser 100 and the rear sub-frame 200 are improved. The connecting bracket 23 is arranged at one end of the first section 11 close to the second section 12 and / or one end of the second section 12 close to the first section 11, so that the connecting bracket 23 can be located at the connection between the first section 11 and the second section 12, which can better play the role of connecting the body 1 and the rear sub-frame 200 and improve the connection reliability.

[0046] Furthermore, the connecting bracket 23 is connected to the first section 11 and / or the second section 12 by fasteners, so that the connection between the connecting bracket 23 and the first section 11 and / or the second section 12 is simple and has strong stability, thereby improving the stability of the connection between the body 1 and the rear subframe 200. For example, the fasteners may be bolts.

[0047] It can be understood that the connecting bracket 23 can be arranged at one end of the first section 11 close to the second section 12, for connecting the first section 11 and the rear subframe 200; the connecting bracket 23 can also be arranged at one end of the second section 12 close to the first section 11, for connecting the second section 12 and the rear subframe 200; the connecting bracket 23 can also be partially arranged at one end of the first section 11 close to the second section 12, and partially arranged at one end of the second section 12 close to the first section 11, and simultaneously connect the first section 11 and the second section 12 to the rear subframe 200.

[0048] In some embodiments of the present invention, refer to the attached Figure 2As shown, the body 1 has a plurality of mounting holes 13, the plurality of mounting holes 13 include a plurality of first mounting holes 131 and a plurality of second mounting holes 132, the plurality of first mounting holes 131 are arranged at intervals along the circumferential direction of the body 1, and are used to connect with the battery terminal bracket, the plurality of first mounting holes 131 include a first sub-mounting hole 1311 provided in the first section 11 and a second sub-mounting hole 1312 provided in the second section 12, and the first sub-mounting hole 1311 and the second sub-mounting hole 1312 are both located at the ends of the first section 11 and the second section 12 away from each other, so that the body 1 can be connected with the battery terminal bracket from the circumferential direction, thereby improving the reliability of the connection between the body 1 and the battery terminal bracket. Further, referring to the attached Figure 2 As shown, the second mounting hole 132 is provided in the second section 12 for connecting with the luggage storage box 300 , which can ensure the stability of the connection between the body 1 and the luggage storage box.

[0049] In a specific example, see the attached Figure 1 and attached Figure 2 As shown, the first sub-mounting hole 1311 is provided at one end of the first section 11 away from the second section 12, and there are five of them spaced apart in the left-right direction of the vehicle, which can facilitate the connection between the first section 11 and the battery terminal bracket, the second sub-mounting hole 1312 is provided at one end of the second section 12 away from the first section 11, and there are two of them spaced apart in the left-right direction of the vehicle, which can facilitate the connection between the second section 12 and the battery terminal bracket, and the second mounting hole 132 is provided on the second section 12, and there are three of them spaced apart in the left-right direction of the vehicle, which can better connect with the luggage storage box 300.

[0050] In some embodiments of the present invention, refer to the attached Figure 1 and attached Figure 2 As shown, at least one of the first section 11 and the second section 12 is provided with a reinforcing rib 14, and the reinforcing rib 14 extends along the front-rear direction of the vehicle. The provision of the reinforcing rib 14 can strengthen the structural strength of the first section 11 and / or the second section 12, improve the structural reliability of the body 1, and further improve the stability of the diffuser 100.

[0051] It is understandable that the reinforcing ribs 14 may be provided on only the first section 11 , or on only the second section 12 , or on both the first section 11 and the second section 12 .

[0052] In some embodiments of the present invention, the first section 11 and the second section 12 are connected by fasteners, so that the connection between the first section 11 and the second section 12 is simple and has strong stability, thereby improving the overall stability of the diffuser 100. For example, the fasteners may be bolts.

[0053] In some embodiments of the present invention, refer to the attached Figure 1 and attached Figure 2 As shown, the first section 11 is provided with avoidance gaps 112 for avoiding wheels on both sides along the left and right directions of the vehicle. The avoidance gaps 112 are located at one end of the first section 11 close to the second section 12, thereby leaving a certain space for the assembly of the rear wheels and further reducing the separation area generated by the rear wheels, thereby reducing the problem of uncontrolled eddy currents in the separation area.

[0054] The utility model also provides a vehicle having the diffuser 100 of the above embodiment.

[0055] According to the vehicle of the embodiment of the utility model, by providing the above-mentioned diffuser 100, the main body 1 includes the split first section 11 and the second section 12, which can facilitate the production and processing of the main body 1 and meet the processing requirements of different shapes of the first section 11 and the second section 12. The part of the first section 11 protrudes toward the lower side to form a protrusion 111, which can make the air pressure around the protrusion 111 higher than the air pressure near the wheel, so that when the airflow flows to the first section 11, it flows toward both sides of the vehicle in the left and right directions, thereby reducing the separation area of ​​the wheel and reducing the problem of uncontrolled vortex in the separation area of ​​the wheel. The second section 12 is inclined upward in the direction from the front section to the rear section of the main body 1, which can control the separation point of the airflow and the departure direction of the airflow, thereby achieving a better upper vortex flow state, realizing precise control of the upper vortex at the rear of the vehicle, reducing the wind resistance at the rear of the vehicle, improving the high-speed cruising range, and reducing costs.

[0056] The diffuser 100 and other components and operations of the vehicle according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail herein.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0058] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A diffuser, It is characterized in that For vehicles, including: The main body includes a first section and a second section which are arranged in sequence and connected in the direction from front to rear of the vehicle, the first section and the second section are separate parts, a portion of the first section protrudes toward the lower side to form a protrusion, and the second section is inclined upward in the direction from the front section to the rear section of the main body.

2. The diffuser according to claim 1, It is characterized in that The vehicle has a rear subframe, the diffuser is located below the rear subframe and further includes: A mounting bracket is provided, wherein the mounting bracket connects the body and the rear subframe.

3. The diffuser according to claim 2, It is characterized in that The mounting bracket comprises: A first mounting bracket and a second mounting bracket are arranged at intervals in the front-rear direction of the vehicle, the first mounting bracket is used to connect the rear subframe and the first section, and the second mounting bracket is used to connect the rear subframe and the second section.

4. The diffuser according to claim 3, It is characterized in that The first mounting bracket is connected to the first section via a fastener; And / or, the second mounting bracket is connected to the second section via a fastener.

5. The diffuser according to claim 2, It is characterized in that The mounting bracket comprises: A connecting bracket, wherein one end of the first section close to the second section and / or one end of the second section close to the first section is connected to the rear subframe via the connecting bracket, and the connecting bracket is connected to the first section and / or the second section via a fastener.

6. The diffuser according to claim 1, It is characterized in that The main body is provided with a plurality of mounting holes, the plurality of mounting holes comprising a plurality of first mounting holes and a second mounting holes, the plurality of first mounting holes being arranged at intervals along the circumferential direction of the main body for connecting to the battery terminal bracket, and the second mounting holes being arranged in the second section for connecting to the luggage storage box.

7. The diffuser according to claim 1, It is characterized in that At least one of the first section and the second section is provided with a reinforcing rib, and the reinforcing rib extends along the front-rear direction of the vehicle.

8. The diffuser according to claim 1, It is characterized in that The first section and the second section are connected by a fastener.

9. The diffuser according to claim 1, It is characterized in that The first section is provided with avoidance gaps for avoiding wheels on both sides along the left-right direction of the vehicle, and the avoidance gaps are located at one end of the first section close to the second section.

10. A vehicle, It is characterized in that Comprising a diffuser according to any one of claims 1-9.

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