Automobile hub capable of reducing wind resistance
By setting open and closed closures and ventilation grooves on the surface of the car wheel hub, the aerodynamic resistance and energy consumption problems during high-speed driving are solved, and the heat dissipation effect is improved during braking, achieving more efficient energy management and extended service life.
Patent Information
- Application Number
- CN202510336823.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2045-03-21
AI Technical Summary
The cavity of existing car wheel hubs will be impacted by airflow when driving at high speed, forming vortex or turbulence, increasing aerodynamic resistance and energy consumption.
The opening and closing closure is provided on the surface of the hub. The closure includes an outer plate and an inner plate. The outer plate is fixed on the outside of the spoke, and the inner plate is rotatably arranged between the outer plate and the spoke, and the opening and closing of the ventilation groove is realized through the driving component. The ventilation groove is opened during brake for heat dissipation.
By closing the cavity of the wheel rim, the aerodynamic resistance and energy consumption during high-speed driving are reduced. At the same time, the opening of the ventilation groove during braking is improved, the cooling effect of the brake disc is extended, and the service life is reduced and energy consumption is reduced.
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Figure CN119974824A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of automobile hubs, and in particular to an automobile hub capable of reducing wind resistance. Background Art
[0002] The automobile wheel hub is a cylindrical metal component inside the automobile tire that is centered on the axle and is used to support the tire. It is an important component that connects the brake drum, wheel disc and half axle.
[0003] In the prior art, in order to make the wheel hub lightweight, a cavity is generally provided inside the wheel hub. The cavity structure increases the contact area between the wheel hub and the air, which is beneficial for the heat of the brake disc to be quickly dissipated through heat conduction, avoiding safety hazards caused by brake heat accumulation. However, the wheel hub cavity will be impacted by airflow when the vehicle is traveling at high speed, and the internal cavity will form eddies or turbulence, increasing aerodynamic resistance and energy consumption.
[0004] In view of the above technical problems, the present invention discloses an automobile wheel hub that can reduce wind resistance. The present invention has the advantages of being provided with a closure member that can be opened and closed on the surface of the wheel hub, so that when driving at high speed, the closure member can close the cavity to reduce aerodynamic resistance, and when braking, the closure member can be opened to improve heat dissipation, etc. Summary of the invention
[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a car wheel hub that can reduce wind resistance, so as to solve the technical problems that the cavity of the car wheel hub in the prior art is generally open, but the open wheel hub cavity will be impacted by the airflow when the vehicle is running at high speed, and the internal cavity will form eddies or turbulence, increasing aerodynamic resistance and increasing energy consumption. The present invention has the advantages of providing a closure member that can be opened and closed on the surface of the wheel hub, so that when driving at high speed, the closure member can close the cavity to reduce aerodynamic resistance, and when braking, the closure member can be opened to improve heat dissipation.
[0006] The present invention is implemented by the following technical scheme: The present invention discloses a car wheel hub capable of reducing wind resistance, comprising a wheel hub body, wherein the wheel hub body comprises a wheel rim, a wheel disc and a wheel spoke, wherein a sealing member is arranged inside the wheel rim, wherein the sealing member is arranged outside the wheel disc, and wherein the sealing member is used to seal the cavity of the wheel rim to reduce the wind resistance of the vehicle during driving; The closure member comprises an outer plate and an inner plate, wherein the outer plate is fixed to the outer side of the spoke, and the inner plate is rotatably disposed between the outer plate and the spoke and arranged coaxially with the outer plate; The outer plate and the inner plate are both provided with ventilation slots distributed in a circular array. The inner plate can rotate around the axis to achieve aligned opening and offset closing of the ventilation slots. The rotation of the inner plate is driven by a driving assembly.
[0007] Furthermore, a central axis is fixedly provided on the outer side of the wheel disc and the wheels are concentrically arranged with each other. The outer plate is fixedly sleeved on the outside of the central axis, and the outer circumferential outer wall of the outer plate is fitted and sealed with the inner wall of the rim. The inner plate is located between the outer plate and the spokes, and the inner plate is rotatably sleeved on the outside of the central axis, and the outer circumferential outer wall of the inner plate is rotatably sealed with the inner wall of the rim. The outer plate and the inner plate are fitted with each other on their facing sides.
[0008] Furthermore, the driving assembly includes an electric push rod, a temperature sensor and a controller. The electric push rod is installed on the inner wall of the wheel rim, and the telescopic axis of the electric push rod is perpendicular to the inner plate. The electric push rod drives the inner plate to rotate through a transmission member. A temperature sensor is installed on the inner side of the spoke for monitoring the temperature of the brake disc. The controller turns on the electric push rod and controls the extension time of its telescopic axis according to the temperature data monitored by the temperature sensor.
[0009] Furthermore, the transmission member includes a gear, a gear ring, a rotating shaft and a conversion part. The spoke is provided with a rotating shaft for internal rotation. One end of the rotating shaft extends between the inner plate and the spoke, and a gear is fixedly sleeved on this end. A gear ring is fixedly provided on the inner side surface of the inner plate, and the gear is meshed with the gear ring. A conversion part is provided between the telescopic shaft of the electric push rod and the rotating shaft, and the conversion part is used to convert the linear motion of the telescopic shaft of the electric push rod into circular rotation of the rotating shaft.
[0010] Furthermore, the conversion part includes a spiral rod and a spiral groove, the spiral rod is fixedly arranged at one end of the telescopic shaft of the electric push rod, the interior of the rotating shaft is provided with a spiral groove, and the spiral rod is inserted into the interior of the spiral groove.
[0011] Furthermore, a plurality of the temperature sensors are distributed along the circumference of the brake disc on the inner side of the spoke, and the temperature sensors are configured as non-contact sensors.
[0012] Furthermore, a spacing is provided between the inner plate and the spokes, and the gear ring is arranged on the side wall of the inner plate at a position close to the outer circumferential edge.
[0013] The present invention has the following advantages: The present invention provides a closing piece, and the closing piece is provided with ventilation grooves. The ventilation grooves on the closing piece have opening and closing functions, and the wheel rim cavity can be closed by the closing piece, so that the hub body is a closed hub, so as to avoid generating large aerodynamic resistance and increasing vehicle energy consumption when driving at high speed. In addition, the opening and closing of the closing piece is controlled by a driving component, and the opening and closing adjustment of the ventilation grooves is set to the temperature of the brake disc as a trigger mechanism, so that the ventilation grooves can be opened in time to ventilate and dissipate heat for the brake disc. In addition, a controller and a temperature sensor are provided to form a closed-loop control system with the electric push rod, and the extension state and duration of the electric push rod are determined according to the temperature data. When the brake disc is at a high temperature, the opening time of the electric push rod is extended, and when the brake disc is at a low temperature, the opening time of the electric push rod is shortened, so that the heat dissipation effect is better and the energy consumption is further reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the wheel rim structure of the present invention; Figure 3 It is a schematic structural diagram of the closure member of the present invention in a closed state; Figure 4 It is a schematic diagram of the cross-sectional structure of the wheel rim of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the closure member of the present invention; Figure 6 For the present invention Figure 4 A local enlarged structural schematic diagram; Figure 7 For the present invention Figure 5 Schematic diagram of the local enlarged structure at point B.
[0015] In the figure: 1. hub body; 2. closure; 3. ventilation groove; 4. clearance hole; 5. sealing ring; 6. drive assembly; 7. transmission member; 101. rim; 102. wheel disc; 103. spoke; 201. center axis; 202. outer plate; 203. inner plate; 601. electric push rod; 602. controller; 603. temperature sensor; 701. gear; 702. gear ring; 703. rotating shaft; 704. conversion part; 741. screw rod; 742. spiral groove. DETAILED DESCRIPTION
[0016] The following is a detailed description of an embodiment of the present invention. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific operation process are given. However, the protection scope of the present invention is not limited to the following embodiments. In the description of the present invention, words indicating directions or positional relationships such as "front", "rear", "left", and "right" are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.
[0017] The embodiment discloses a vehicle wheel hub capable of reducing wind resistance, such as Figure 1-Figure 7 As shown, it includes a hub body 1, as Figure 2 As shown, the hub body 1 specifically includes a rim 101 directly matched with the tire and a cavity inside the rim 101, and also includes a wheel disc 102. The wheel disc 102 is used as a part connecting the hub with the axle, and has multiple bolt holes distributed around it, and is then fixed to the axle by bolts. Spokes 103 are also arranged between the wheel disc 102 and the rim 101. The spokes 103 are arranged to extend radially from the center of the rim 101 to the edge of the rim 101. The main function of the spokes 103 is to connect the rim 101 with the wheel disc 102 and transmit torque to the axle. In the prior art, there is space between the spokes of the wheel 103, so that the cavity of the wheel rim 101 is connected with the outside, and air can flow in the internal cavity of the wheel rim 101, which is beneficial to the heat dissipation of the brake disc. However, when the cavity of the wheel rim 101 is connected with the outside, there will be a cavity that is impacted by airflow when the vehicle is traveling at high speed, and the internal cavity will form eddies or turbulence, increasing aerodynamic resistance and thus increasing energy consumption.
[0018] Therefore, in this embodiment, Figure 1 and Figure 3 As shown, a sealing member 2 is provided inside the wheel rim 101. The sealing member 2 is specifically provided on the opposite side of the wheel disc 102 connected to the axle, that is, on the outside of the wheel spoke 103. The wheel rim 101 is then sealed by the sealing member 2, so that the hub body 1 is a closed hub, thereby avoiding the generation of large aerodynamic resistance and increasing vehicle energy consumption when driving at high speed. When the sealing member 2 seals the cavity of the hub body 1, it will be detrimental to the heat dissipation of the brake disc, which will cause the brake disc to overheat and be damaged, shortening its service life; In this embodiment, ventilation slots 3 are provided on the closing member 2, and the ventilation slots 3 are configured to have two modes of opening and closing, and the opening and closing of the ventilation slots 3 are configured to be triggered according to the brake disc temperature, so that each time the brake disc temperature reaches a set value, the ventilation slots 3 are opened for heat dissipation, and during normal driving, the ventilation slots 3 are closed to reduce wind resistance.
[0019] In this embodiment, the set value temperature is set to 400°, but in actual use, it can be adjusted by ±30° depending on factors such as materials and environment.
[0020] Specifically, Figure 1-Figure 4 As shown, the closure member 2 includes a central axis 201, an outer plate 202 and an inner plate 203, wherein the central axis 201 is fixedly connected to the center of the wheel disc 102 and is concentrically arranged with each other, and the inner plate 203 is rotatably sleeved on the outside of the central axis 201, and the outer circumferential outer wall of the inner plate 203 is arranged to fit and slide with the inner wall of the wheel rim 101, and the outer side of the inner plate 203, that is, the side of the inner plate 203 opposite to the spoke 103 is provided with the outer plate 202, and the outer plate 202 is fixedly sleeved on the outside of the central axis 201, and the outer circumferential outer wall of the outer plate 202 is also fitted and sealed with the inner wall of the wheel rim 101, and the outer plate 202 and the inner plate 203 are fitted and slidably matched with each other on the opposite sides, and the inner plate 202 and the inner plate 203 are both provided with ventilation slots 3; The ventilation slots 3 on the outer plate 202 penetrate the two side end surfaces of the outer plate 202, and the ventilation slots 3 on the inner plate 203 also penetrate the two side end surfaces of the inner plate 203. The ventilation slots 3 are arranged in a fan shape, and a plurality of fan-shaped ventilation slots 3 are respectively arranged on the outer plate 202 and the inner plate 203. The fan-shaped ventilation slots 3 are arranged in a circular array with the central axis 201 as the center. When the inner plate 203 is rotated, the ventilation slots 3 on the inner plate 203 are rotated to between two adjacent ventilation slots 3 of the outer plate 202, so that the ventilation slots 3 on the inner plate 203 can be covered by the outer plate 202, and the ventilation slots 3 on the outer plate 202 can be covered by the inner plate 203, so as to realize the closing of the ventilation slots 3; In other words, when the ventilation grooves 3 on the outer plate 202 and the inner plate 203 are aligned with each other, the ventilation grooves 3 are opened so that the inner cavity of the rim 101 is connected with the outside, and when the ventilation grooves 3 on the outer plate 202 and the inner plate 203 are staggered with each other, the ventilation grooves 3 are closed, thereby blocking the connection between the inner cavity of the rim 101 and the outside.
[0021] Therefore, when it is necessary to open the ventilation slots 3 of the closure member 2, it is only necessary to rotate the inner plate 203 so that after the inner plate 203 is rotated by an angle, the ventilation slots 3 on the outer plate 202 and the inner plate 203 are aligned with each other, and then the ventilation slots 3 are opened for ventilation and heat dissipation. When it is necessary to close the ventilation slots 3 of the closure member 2, the inner plate 203 is reset and rotated so that the ventilation slots 3 on the outer plate 202 and the inner plate 203 are staggered with each other, and then the ventilation slots 3 are covered by each other, so that the ventilation slots 3 are closed.
[0022] It should be noted that the rotational connection between the inner plate 203 and the central axis 201 is configured as a rotational seal. A sealing ring 5 is provided on the outer circumferential wall of the inner plate 203, so that the inner plate 203 and the inner wall of the rim 101 can be rotationally connected while ensuring sealing. The outer circumferential wall of the outer plate 202 and the inner wall of the rim are sealed by providing a sealing ring 5. In addition, a sealing layer can also be provided on the facing side of the outer plate 202 and the inner plate 203 to achieve sealing between the outer plate 202 and the inner plate 203.
[0023] The material of the closing member 2 can be selected to be a high temperature resistant material, such as 304 stainless steel or other metal materials. In addition, a clearance hole 4 is opened at the center of the outer plate 202 and the inner plate 203 to make way for the bolt hole.
[0024] The rotation of the inner plate 203 is configured to be controlled by a drive assembly 6, and the drive assembly 6 is configured to be a component driven by electricity. In the present embodiment, the drive assembly 6 is configured to include an electric push rod 601, a controller 602 and a temperature sensor 603. The rotation of the inner plate 203 is achieved by the extension and retraction of the electric push rod 601. In addition, in order to dissipate the heat of the brake disc in time when the brake disc is heated, a temperature sensor 603 is provided to measure the temperature of the brake disc. When the temperature of the brake disc reaches a set value, the electric push rod 601 can be started to rotate the inner plate 203, thereby controlling the opening of the ventilation slots 3 for ventilation and heat dissipation. When the brake disc is below the set temperature, the ventilation slots 3 can remain closed, thereby reducing wind resistance and energy consumption.
[0025] Taking into account that the length of braking time and the braking force have a significant impact on the temperature of the brake disc, in this embodiment, the temperature of the brake disc is used as a trigger mechanism for ventilation, so that the temperature of the brake disc can be understood more accurately, and then the opening time of the ventilation slot 3 can be adjusted in real time according to the temperature of the brake disc, so that the opening time of the ventilation slot 3 is more adaptive, the heat dissipation effect is better, and the energy consumption is further reduced.
[0026] It should be noted that there is a gap between the inner plate 203 and the spokes 103 .
[0027] Specifically, in order to realize the rotation control of the inner plate 203 by the electric push rod 601, as shown in FIG. Figure 4-Figure 7 As shown, the electric push rod 601 controls the rotation of the inner plate 203 by setting a transmission member 7. The transmission member 7 in this embodiment is configured to transmit the transmission through a gear 701.
[0028] Transmission member 7 includes a gear 701, a gear ring 702, a rotating shaft 703 and a conversion part 704, wherein a rotating shaft 703 is rotatably arranged inside a spoke at a spoke 103, and specifically, a hole is opened inside the spoke and penetrates the end faces of both sides of the spoke, and the rotating shaft 703 is rotatably arranged inside the hole through a rotating connection member such as a bearing, and both ends of the rotating shaft 703 extend to both sides of the spoke 103 respectively, one end of the rotating shaft 703 is between the inner plate 203 and the spoke 103, and the other end is inside the cavity of the rim 101, and the rotating shaft 703 is located between the inner plate 203 and the spoke A gear 701 is fixedly sleeved on one end between the spokes 103, and a toothed ring 702 is fixedly arranged on the side of the inner plate 203 facing the spokes 103, that is, the inner side surface of the inner plate 203, and the toothed ring 702 is arranged as a section, and the gear 701 is meshed with the toothed ring 702. It should be noted that the toothed ring 702 is arranged at a position close to the outer circumferential edge of the inner plate 203, so the gear 701 can be driven to rotate by rotating the rotating shaft 703, and then the inner plate 203 is rotated by the meshing of the gear 701 and the toothed ring 702, thereby opening or closing the ventilation slot 3; In addition, the electric push rod 601 is fixedly installed inside the wheel rim 101, and the telescopic axis of the electric push rod 601 is perpendicular to the spokes 103 and extends toward the spokes 103, and the telescopic axis of the electric push rod 601 is concentrically arranged with the rotating shaft 703, and a conversion part 704 is arranged between the telescopic axis of the electric push rod 601 and the rotating shaft 703, and the conversion part 704 is used to convert the linear motion of the telescopic axis of the electric push rod 601 into the circular rotation of the rotating shaft 703.
[0029] like Figure 6 As shown, the conversion part 704 includes a spiral rod 741 and a spiral groove 742, wherein the spiral rod 741 is fixedly arranged at one end of the telescopic shaft, and a spiral groove 742 is opened inside the rotating shaft 703, and the spiral groove 742 penetrates the end surface of the rotating shaft 703 facing the electric push rod 601, the spiral rod 741 is plugged into the spiral groove 742, and the rotating shaft 703 is rotated by the linear motion of the spiral rod 741 inside the spiral groove 742.
[0030] Through the above arrangement, when it is necessary to control the rotation of the inner plate 203, it is only necessary to control the extension of the telescopic shaft of the electric push rod 601. The extension of the telescopic shaft allows the spiral rod 741 to be inserted into the spiral groove 742, so that the rotating shaft 703 rotates. The rotating shaft 703 will drive the gear 701 to rotate and the inner plate 203 will rotate through the engagement with the gear ring 702, thereby controlling the opening of the ventilation slot 3. When closing, the telescopic shaft of the electric push rod 601 will contract, so that the inner plate 203 will reset and rotate, thereby closing the ventilation slot 3.
[0031] In addition, if Figure 4As shown, the temperature sensor 603 is configured as a non-contact temperature sensor 603, specifically a laser temperature sensor 603, and the temperature sensor 603 is installed on the inner side of the spoke 103, and the temperature of the brake disc is monitored by the temperature sensor 603. It should be noted that a plurality of temperature sensors 603 are provided, and the plurality of temperature sensors 603 are distributed circumferentially along the brake disc, thereby performing multi-point temperature monitoring on the brake disc to improve the accuracy of temperature monitoring.
[0032] In this embodiment, a controller 602 is also provided. The controller 602 can be selectively installed on the inner side of the hub body 1 or inside the engine compartment. In terms of control logic, the temperature sensor 603, the controller 602, and the electric push rod 601 form a closed-loop control system. The controller 602 determines the extension and retraction state and duration of the electric push rod 601 based on the temperature data monitored by the temperature sensor 603. Specifically, the opening time of the electric push rod 601 is extended when the brake disc is at a high temperature, and the opening time of the electric push rod 601 is shortened when the temperature is low.
[0033] It should be noted that, in this embodiment, the electric push rod 601, the temperature sensor 603 and the controller 602 are connected via a wireless module.
[0034] The principle of the present invention is as follows: Under normal conditions, the closure member 2 is in a closed state, so that when the vehicle is traveling, the ventilation slot 3 can be closed to reduce wind resistance and energy consumption. At the same time, the temperature sensor 603 monitors the temperature of the brake disc in real time. Once the brake is applied and the temperature of the brake disc rises to a set value, the electric push rod 601 is started, and the telescopic shaft of the electric push rod 601 is extended. The extension of the telescopic shaft allows the spiral rod 741 to be inserted into the spiral groove 742, so that the rotating shaft 703 rotates. The rotating shaft 703 drives the gear 701 to rotate and rotates the inner plate 203 through engagement with the gear ring 702, thereby controlling the opening of the ventilation slot 3 to ventilate and dissipate heat for the brake disc. At the same time, the controller 602 determines the telescopic state and duration of the electric push rod 601 according to the temperature data. When the brake disc is at a high temperature, the opening time of the electric push rod 601 is extended, and when the brake disc is at a low temperature, the opening time of the electric push rod 601 is shortened.
[0035] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
Claims
1. A car wheel hub capable of reducing wind resistance, comprising a wheel hub body (1), wherein the wheel hub body (1) comprises a wheel rim (101), a wheel disc (102) and a wheel spoke (103), characterized in that: A closing piece (2) is arranged inside the wheel rim (101), and the closing piece (2) is arranged outside the wheel disc (102), and the closing piece (2) is used to close the cavity of the wheel rim (101) to reduce the wind resistance during driving; The closure member (2) comprises an outer plate (202) and an inner plate (203), wherein the outer plate (202) is fixed to the outer side of the spoke (103), and the inner plate (203) is rotatably disposed between the outer plate (202) and the spoke (103) and is coaxially arranged with the outer plate (202); The outer plate (202) and the inner plate (203) are both provided with ventilation slots (3) distributed in a ring array, and the inner plate (203) can rotate around an axis to achieve aligned opening and offset closing of the ventilation slots (3), and the rotation of the inner plate (203) is driven by a driving assembly (6).
2. The automobile wheel hub capable of reducing wind resistance as claimed in claim 1, characterized in that: The outer side of the wheel disc (102) is fixedly provided with a central axis (201) and the wheels are arranged concentrically with each other. The outer plate (202) is fixedly sleeved on the outside of the central axis (201). The outer circumferential outer wall of the outer plate (202) is in close contact with and sealed against the inner wall of the wheel rim (101). The inner plate (203) is located between the outer plate (202) and the spokes (103). The inner plate (203) is rotatably sleeved on the outside of the central axis (201). The outer circumferential outer wall of the inner plate (203) is in close contact with the inner wall of the wheel rim (101). The outer plate (202) and the inner plate (203) are in close contact with each other on their facing sides.
3. The automobile wheel hub capable of reducing wind resistance as claimed in claim 2, characterized in that: The driving assembly (6) comprises an electric push rod (601), a temperature sensor (603) and a controller (602); the electric push rod (601) is mounted on the inner wall of the wheel rim (101), and the telescopic axis of the electric push rod (601) is perpendicular to the inner plate (203); the electric push rod (601) drives the inner plate (203) to rotate via a transmission member (7); a temperature sensor (603) is mounted on the inner side of the wheel spoke (103) for monitoring the temperature of the brake disc; and the controller (602) activates the electric push rod (601) and controls the extension time of the telescopic axis according to temperature data monitored by the temperature sensor (603).
4. The automobile wheel hub capable of reducing wind resistance as claimed in claim 3, characterized in that: The transmission member (7) comprises a gear (701), a gear ring (702), a rotating shaft (703) and a conversion part (704); the spoke (103) is provided with a rotating shaft (703) for internal rotation; one end of the rotating shaft (703) extends between the inner plate (203) and the spoke (103), and the gear (701) is fixedly sleeved on the end; the inner side surface of the inner plate (203) is fixedly provided with a gear ring (702); the gear (701) is meshed with the gear ring (702); a conversion part (704) is provided between the telescopic shaft of the electric push rod (601) and the rotating shaft (703); the conversion part (704) is used to convert the linear motion of the telescopic shaft of the electric push rod (601) into the circular rotation of the rotating shaft (703).
5. The automobile wheel hub capable of reducing wind resistance as claimed in claim 4, characterized in that: The conversion part (704) comprises a spiral rod (741) and a spiral groove (742); the spiral rod (741) is fixedly arranged at one end of the telescopic shaft of the electric push rod (601); the interior of the rotating shaft (703) is provided with a spiral groove (742); and the spiral rod (741) is inserted into the interior of the spiral groove (742).
6. The automobile wheel hub capable of reducing wind resistance as claimed in claim 5, characterized in that: A plurality of the temperature sensors (603) are distributed along the circumference of the brake disc on the inner side of the spoke (103), and the temperature sensors (603) are configured as non-contact sensors.
7. The automobile wheel hub capable of reducing wind resistance as claimed in claim 6, characterized in that: A spacing is provided between the inner plate (203) and the spokes (103), and the toothed ring (702) is arranged on the side wall of the inner plate (203) at a position close to the outer circumferential edge.
Citation Information
Patent Citations
Active opening and closing hub structure and car
CN109130693A
Hub assembly and vehicle
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Wheel cover assembly and automobile
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