Wind resistance detection device for electric vehicle
By designing an electric vehicle wind resistance detection device that combines a semi-sealed chamber and a high-speed exhaust fan, the swing blades and pushing tracks change the angle of the wind source, the problem of only one-way wind source being detected in the prior art is solved, and a comprehensive wind resistance detection of different directions and angles of the electric vehicle is achieved.
Patent Information
- Application Number
- CN202421948412.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-08-12
AI Technical Summary
The existing electric vehicle wind resistance detection device can only detect the one-way wind source of the electric vehicle, and cannot detect the different angles and directions of the electric vehicle.
An electric vehicle wind resistance detection device is designed, using a semi-sealed chamber and a high-speed exhaust fan. By combining the swing blades and the pushing track, the blowing angle and swing amplitude of the air source can be changed, thereby conducting wind resistance detection of different directions and angles of the electric vehicle.
The wind resistance detection of electric vehicles in different directions and angles has been achieved, overcoming the limitations of traditional devices that can only conduct one-way wind source detection, and improving the comprehensiveness and accuracy of the detection.
Smart Images
Figure CN222748238U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wind resistance detection, in particular to a wind resistance detection device for an electric vehicle. Background Art
[0002] Electric vehicle wind resistance testing mainly involves the use of wind tunnel tests and road tests to evaluate the aerodynamic performance of electric vehicles, including the drag coefficient, the aerodynamic performance of electric vehicles under different wind speed and wind direction conditions, etc. Wind resistance has a significant impact on the energy consumption and cruising range of electric vehicles. The drag coefficient is a quantitative indicator to measure the size of the air resistance of electric vehicles. The smaller the value, the smaller the air resistance the electric vehicle encounters. Reducing the drag coefficient has become one of the key means to improve the endurance of electric vehicles.
[0003] In the current existing technology, when conducting wind resistance detection on existing electric vehicles, it is necessary to put the electric vehicle into a semi-sealed container and then pass through the interior. Under the push of a high-speed and strong wind source blown by a fan, the electric vehicle is tested to see if it will sway at an angle and swing when encountering a strong positive wind. However, in the external natural environment, the external wind source is not only the positive wind source, but also the wind sources blowing in different directions around it. This results in the traditional wind resistance inspection device for detecting electric vehicles being able to only perform one-way wind source detection, and being unable to perform blowing detection on the electric vehicle in all directions, and then perform wind resistance detection processing on the electric vehicle in different directions and angles.
[0004] To this end, the utility model provides a wind resistance detection device for an electric vehicle. Utility Model Content
[0005] To this end, the technical problem to be solved by the utility model is to overcome the existing electric vehicle wind resistance detection device in the prior art, which can only detect the wind resistance of the electric vehicle's unidirectional wind source, and cannot detect different angles and directions of the electric vehicle, and then perform wind resistance detection processing at different directions and angles of the electric vehicle.
[0006] In order to solve the above technical problems, the utility model provides a wind resistance detection device for an electric vehicle.
[0007] In one embodiment of the utility model, it includes a semi-sealed chamber and a wheel raising block slidably overlapped on the inner wall surface of the bottom of the semi-sealed chamber, an electric vehicle movably sleeved on the outer surface of the top of the wheel raising block, a high-speed exhaust fan is detachably installed on one side surface of the semi-sealed chamber, a limiting pad is fixedly connected to the inner wall surface of the semi-sealed chamber and located at a side edge position of the high-speed exhaust fan, a limiting rod 1 is movably sleeved on the limiting pad and the outer surface of the semi-sealed chamber, a swing blade is fixedly connected to one end of the limiting rod 1 and located on the outer surface of the limiting pad, a pushing track is movably sleeved on the outer surface of the limiting rod 1 and located on the outer surface of the semi-sealed chamber, a motor is fixedly installed on the outer surface of the semi-sealed chamber, and the outer surface of the output end of the motor is movably sleeved on the inner wall surface of one end of the pushing track, and a threaded rod is provided on the inner wall surface of the bottom of the semi-sealed chamber.
[0008] In one embodiment of the utility model, limiting threaded collars are fixedly installed on both side surfaces of the wheel raising block, and the inner wall surface of the limiting threaded collar is threadably sleeved on the outer surface of the threaded rod.
[0009] In one embodiment of the utility model, an overlapping groove is arranged on the top surface of the wheel raising block, and a second limiting rod is movably sleeved on the inner wall surface of the overlapping groove.
[0010] In an embodiment of the present utility model, one end of the second limiting rod is fixedly connected to a limiting plate, and the limiting plate is arranged at a middle position inside the wheel raising block.
[0011] In an embodiment of the present invention, front fork limiting grooves are provided on both side surfaces of the limiting plate and at the top edge position.
[0012] In one embodiment of the utility model, the inner wall surface of the front fork limiting groove is movably sleeved on the two side surfaces of the electric vehicle, and the outer surface of the wheel raising block is fixedly connected with a support rod.
[0013] In an embodiment of the present invention, elastic wires are fixedly connected to both side surfaces of the limiting plate, and the other end of the elastic wires is fixedly connected to one side inner wall surface of the overlapping groove.
[0014] In one embodiment of the present invention, closed doors arranged on the outer surface of the electric vehicle are symmetrically swingably sleeved on both side surfaces of the semi-sealed chamber.
[0015] The above technical solution of the utility model has the following advantages compared with the prior art:
[0016] The utility model discloses an electric vehicle wind resistance detection device, which overlaps the electric vehicle on the top surface of the wheel raising block, cooperates with the threaded rod to move the wheel raising block to the deep inside of the semi-sealed chamber, cooperates with the high-speed exhaust fan to infuse a strong wind source into the interior of the semi-sealed chamber to blow the wind source to the positive surface of the electric vehicle. When the high-speed exhaust fan is blowing the wind source at high speed, it cooperates with the motor to push the propulsion track, thereby driving the limit rod to rotate on the surface of the limit pad, so as to change the swing amplitude of the swing blade, and utilizes the inclination angle of the longitudinal and transverse swing blades to change the blowing angle and swing amplitude of the wind source blown by the high-speed exhaust fan when passing through the surface of the swing blade, so that the wind source can blow the electric vehicle at a variety of different angles, thereby achieving the effect of wind resistance detection at different angles of the electric vehicle.
[0017] The utility model discloses an electric vehicle wind resistance detection device, which clamps the front fork wheel of the electric vehicle into the interior of a limiting plate, cooperates with the front fork limiting grooves on the surfaces of both sides of the limiting plate to clamp the front fork of the electric vehicle, and then limits the position of the wheel of the electric vehicle, and rotates in cooperation with the threaded rod, so that the limiting threaded ring on the outer surface of the threaded rod drives the wheel raising block to slide. When different wind sources blow the electric vehicle, the driving force of the wind source will cause the electric vehicle to swing slightly left and right on the surface of the wheel raising block. The swing amplitude of the electric vehicle is used to detect how the electric vehicle will swing when pushed by the current wind source, which has a great effect on the wind resistance received. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.
[0019] Figure 1 It is a three-dimensional diagram of the utility model;
[0020] Figure 2 It is a schematic diagram of the cutaway three-dimensional structure of the semi-sealed chamber in the utility model;
[0021] Figure 3 It is a partial cross-sectional three-dimensional structural schematic diagram of a semi-sealed chamber in the utility model;
[0022] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the swing blade in the utility model;
[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the wheel pad block in the utility model;
[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the front fork limiting groove in the utility model.
[0025] Explanation of the reference numerals in the drawings in the specification: 11. semi-sealed chamber; 111. closed door; 112. high-speed exhaust fan; 113. limit rod one; 114. swing blade; 115. push track; 116. motor; 117. threaded rod; 118. limit pad; 12. electric vehicle; 13. wheel raising block; 131. limit threaded ring; 132. overlapping groove; 133. limit rod two; 134. limit plate; 135. front fork limit groove; 136. elastic wire; 137. support rod. DETAILED DESCRIPTION
[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.
[0027] Reference Figures 1 to 6 As shown, an electric vehicle wind resistance detection device of the utility model comprises a semi-sealed chamber 11 and a wheel pad 13 slidably overlapped on the inner wall surface of the bottom of the semi-sealed chamber 11, an electric vehicle 12 movably sleeved on the outer surface of the top of the wheel pad 13, a high-speed exhaust fan 112 is detachably installed on one side surface of the semi-sealed chamber 11, a limiting pad 118 is fixedly connected to the inner wall surface of the semi-sealed chamber 11 and located at the edge position of one side of the high-speed exhaust fan 112, and the limiting pad 118 and the outer surface of the semi-sealed chamber 11 are fixedly connected. A limiting rod 113 is movably sleeved on the surface, a swing blade 114 is fixedly connected to one end of the limiting rod 113 and located on the outer surface of the limiting pad 118, a pushing track 115 is movably sleeved on the outer surface of the limiting rod 113 and located on the outer surface of the semi-sealed chamber 11, a motor 116 is fixedly installed on the outer surface of the semi-sealed chamber 11, and the outer surface of the output end of the motor 116 is movably sleeved on the inner wall of one end of the pushing track 115, and a threaded rod 117 is provided on the inner wall of the bottom of the semi-sealed chamber 11.
[0028] During operation, the electric vehicle 12 is overlapped on the top surface of the wheel raising block 13, and the wheel raising block 13 is moved to the inner depth of the semi-sealed chamber 11 with the threaded rod 117, and the high-speed exhaust fan 112 is used to inject a strong wind source into the interior of the semi-sealed chamber 11 to blow the wind source to the positive surface of the electric vehicle 12. When the high-speed exhaust fan 112 is blowing the wind source at high speed, the motor 116 is used to push the push track 115, thereby driving the limit rod 113 to rotate on the surface of the limit pad 118, so as to change the swing blade 114. The swing amplitude of the longitudinal and transverse swing blades 114 is utilized to change the blowing angle and the swing amplitude of the wind source when the wind source blown by the high-speed exhaust fan 112 passes through the surface of the swing blades 114, so that the wind source can blow the electric vehicle 12 at a variety of different angles, thereby achieving the effect of wind resistance detection at different angles of the electric vehicle 12, thereby avoiding the situation that a one-way wind source can only perform one-way wind resistance detection on the electric vehicle 12, and cannot detect different angles and directions of the electric vehicle 12, thereby achieving wind resistance detection processing at different directions and angles of the electric vehicle.
[0029] Further, such as Figures 1 to 3 and Figure 5 - Figure 6 As shown, the limiting threaded collars 131 are fixedly installed on the two side surfaces of the wheel raising block 13, and the inner wall surface of the limiting threaded collar 131 is threaded and movably sleeved on the outer surface of the threaded rod 117. The top surface of the wheel raising block 13 is provided with an overlapping groove 132, and the inner wall surface of the overlapping groove 132 is movably sleeved with a limiting rod 133, and one end of the limiting rod 133 is fixedly connected to a limiting plate 134, and the position of the limiting plate 134 is set at the middle position inside the wheel raising block 13, and the two sides of the limiting plate 134 A front fork limiting groove 135 is provided on the surface and at the top edge position, the inner side wall of the front fork limiting groove 135 is movably sleeved on the two side surfaces of the electric vehicle 12, a support rod 137 is fixedly connected to the outer side surface of the wheel pad 13, an elastic wire 136 is fixedly connected to the two side surfaces of the limiting plate 134, and the other end of the elastic wire 136 is fixedly connected to the inner wall surface of one side of the overlapping groove 132, and a closing door 111 arranged on the outer side surface of the electric vehicle 12 is symmetrically swung and sleeved on the two side surfaces of the semi-sealed chamber 11;
[0030] When working, the front fork wheel of the electric vehicle 12 is clamped into the inside of the limit plate 134, and the front fork limit grooves 135 on the two side surfaces of the limit plate 134 are used to clamp the front fork of the electric vehicle 12, thereby limiting the wheel position of the electric vehicle 12, and cooperating with the threaded rod 117 to rotate, so that the limiting threaded ring 131 on the outer surface of the threaded rod 117 drives the wheel pad 13 to slide. When different wind sources are blowing the electric vehicle 12, the driving force of the wind source will cause the electric vehicle 12 to swing slightly left and right on the surface of the wheel pad 13. The swing amplitude of the electric vehicle 12 is used to detect how the electric vehicle 12 will swing when it is driven by the current wind source. The wind resistance received has a great effect, and when the electric vehicle 12 swings inside the wheel pad 13, the elastic wires 136 on the two side surfaces of the limit plate 134 are used to elastically buffer the swing of the limit plate 134, so that the electric vehicle 12 can be quickly reset.
[0031] Working principle: the front fork wheel of the electric vehicle 12 is clamped into the inside of the limiting plate 134, and the front fork limiting grooves 135 on the two side surfaces of the limiting plate 134 are used to clamp the front fork of the electric vehicle 12, thereby limiting the wheel position of the electric vehicle 12, and the threaded rod 117 is rotated to make the limiting threaded ring 131 on the outer surface of the threaded rod 117 drive the wheel pad 13 to slide, and the high-speed exhaust fan 112 is used to infuse a strong wind source into the interior of the semi-sealed chamber 11 to blow the wind source on the positive surface of the electric vehicle 12. When the high-speed exhaust fan 112 is blowing the wind source at a high speed, the motor 116 is used to push the push track 115, thereby driving the limiting rod 113 to rotate on the surface of the limiting pad 118, so as to change the swing amplitude of the swing blade 114, and utilize the longitudinal and lateral swing blades 11 4, so that the wind source blown by the high-speed exhaust fan 112 changes the blowing angle and swing amplitude of the wind source when passing through the surface of the swing blade 114, so that the wind source can blow the electric vehicle 12 at a variety of different angles, thereby achieving the effect of wind resistance detection at different angles of the electric vehicle 12; when different wind sources are blowing the electric vehicle 12, the driving force of the wind source will cause the electric vehicle 12 to swing slightly left and right on the surface of the wheel pad 13, and the swing amplitude of the electric vehicle 12 is used to detect how the electric vehicle 12 swings when it is pushed by the current wind source, and the wind resistance received has a great effect, and when the electric vehicle 12 swings inside the wheel pad 13, the elastic wires 136 on the surfaces of both sides of the limit plate 134 are used to elastically buffer the swing of the limit plate 134, so that the electric vehicle 12 can be quickly reset.
[0032] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.
Claims
1. An electric vehicle wind resistance detection device, comprising a semi-sealed chamber (11), a wheel raising block (13) slidably overlapped on the inner wall surface of the bottom of the semi-sealed chamber (11), and an electric vehicle (12) movably sleeved on the outer surface of the top of the wheel raising block (13), characterized in that: A high-speed exhaust fan (112) is detachably mounted on a side surface of the semi-sealed chamber (11); a limiting pad (118) is fixedly connected to the inner wall of the semi-sealed chamber (11) and located at a side edge of the high-speed exhaust fan (112); a limiting rod (113) is movably sleeved on the outer surface of the limiting pad (118) and the semi-sealed chamber (11); one end of the limiting rod (113) is fixedly mounted on the outer surface of the limiting pad (118). A swing blade (114) is connected, a push track (115) is movably sleeved on the outer surface of the limit rod (113) and located on the outer surface of the semi-sealed chamber (11), a motor (116) is fixedly mounted on the outer surface of the semi-sealed chamber (11), and the outer surface of the output end of the motor (116) is movably sleeved on the inner wall of one end of the push track (115), and a threaded rod (117) is provided on the inner wall of the bottom of the semi-sealed chamber (11).
2. The electric vehicle wind resistance detection device according to claim 1, characterized in that: Limiting threaded collars (131) are fixedly mounted on both side surfaces of the wheel raising block (13), and the inner wall surface of the limiting threaded collar (131) is threadedly movably sleeved on the outer surface of the threaded rod (117).
3. The electric vehicle wind resistance detection device according to claim 1, characterized in that: An overlapping groove (132) is provided on the top surface of the wheel raising block (13), and a second limiting rod (133) is movably sleeved on the inner wall surface of the overlapping groove (132).
4. The electric vehicle wind resistance detection device according to claim 3, characterized in that: One end of the second limiting rod (133) is fixedly connected to a limiting plate (134), and the limiting plate (134) is arranged at a middle position inside the wheel raising block (13).
5. The electric vehicle wind resistance detection device according to claim 4, characterized in that: Front fork limiting grooves (135) are provided on both side surfaces of the limiting plate (134) and at the top edge.
6. The electric vehicle wind resistance detection device according to claim 5, characterized in that: The inner wall surface of the front fork limiting groove (135) is movably sleeved on the two side surfaces of the electric vehicle (12), and the outer surface of the wheel raising block (13) is fixedly connected to a support rod (137).
7. The electric vehicle wind resistance detection device according to claim 4, characterized in that: Elastic wires (136) are fixedly connected to the two side surfaces of the limiting plate (134), and the other end of the elastic wire (136) is fixedly connected to the inner wall surface of one side of the overlapping groove (132).
8. The electric vehicle wind resistance detection device according to claim 1, characterized in that: The surfaces on both sides of the semi-sealed chamber (11) are symmetrically swingably sleeved with closing doors (111) arranged on the outer surface of the electric vehicle (12).