Variable wind resistance wheel cover device and control method thereof

Abstract

The application relates to a variable wind resistance wheel cover device and a control method thereof. The wheel cover has a heat dissipation groove, is fixedly connected with a wheel through a wheel connecting shaft, and is rotationally connected with a rotating disc which is provided with a wind resistance blocking piece corresponding to the heat dissipation groove in the outer periphery. The rotating disc is provided with a worm gear. In addition, the electric control worm assembly and the signal acquisition piece are matched, and in use, the electric control worm assembly and the worm gear are engaged. The electric control worm assembly is used for rotating the rotating disc according to the temperature detected by the signal acquisition piece, so that the position of the wind resistance blocking piece is changed, and finally the actual heat dissipation area of the heat dissipation groove can be changed. Due to the self-locking structure control of the worm gear and the worm, the wind resistance blocking piece cannot be reversed by itself, is completely controlled by the electric control worm, and is kept unchanged in any state, which not only meets the demand of high speed and low wind resistance, but also can accurately meet the brake heat dissipation demand, so that the problem that the heat dissipation area and the heat dissipation demand are not matched when the centrifugal force change generated by the wheel speed is used for control is overcome.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile parts, in particular to a variable wind resistance wheel trim cover device and a control method thereof. BACKGROUND

[0002] At present, major vehicle manufacturers have the demand of developing aluminum wheel large trim covers, which can meet the appearance requirements of customers' diversity, and the closed wheel trim cover can also reduce the wind resistance. However, under the working conditions of continuous braking of the vehicle, the temperature of the brake is high, and at this time, if the wheel trim cover is fully closed, the heat cannot be effectively dissipated, causing brake force decay and other problems. How to effectively reduce the wind resistance and the variable appearance requirements, while meeting the brake disc heat dissipation requirements is the current design requirement.

[0003] In some related technologies, the application with the publication number CN114619796A discloses an active wheel trim cover, which includes a plurality of trim cover pieces capable of closing the spoke gaps, the trim cover pieces are rotationally connected to the wheel hub, the wheel hub is provided with a limiting structure for limiting the rotation range of the trim cover pieces and a reset mechanism for driving the trim cover pieces to automatically reset; the trim cover pieces are movable structures, which can close the spoke gaps during vehicle driving and expose the spoke gaps during vehicle braking.

[0004] However, this structure completely relies on the inertial force of the wheel, and because the force of acceleration and deceleration is different, it will cause the opening and closing state of the trim cover piece to not completely match the actual situation of whether the brake disc needs to be cooled, such as when the vehicle is at a constant speed, but the brake disc is hot and needs to be cooled, at this time the trim cover piece cannot be opened; and when the vehicle frequently accelerates and decelerates, the brake disc temperature is low, and the trim cover piece does not need to be opened, but this structure will also be frequently opened and closed.

[0005] In some related technologies, the application with the publication number CN110103630A discloses a wheel rim assembly capable of automatically adjusting wind resistance and a vehicle, which realizes different wind resistance coefficients through the wheel rim with an adjustable louver structure, when the wheel speed increases, the louvers rotate towards the direction of the wheel rim window, the wheel rim window area decreases, the wind resistance becomes smaller, and vice versa, when braking and decelerating, the wheel speed decreases and the tangential force becomes smaller, and the elastic piece pulls back the louvers.

[0006] But this structure is still using the change of wheel speed to cause the centrifugal force difference, and then the length difference of the shutter stretching elastic member, and the opening difference. This structure still exists due to the different force of acceleration and deceleration, which will cause the mismatching of the shutter opening and the brake disc whether it needs to be cooled. For example, after the vehicle continuously brakes on the mountain road (the brake disc is already very hot), the vehicle is in a uniform speed state, but the brake disc needs to be cooled, at this time the shutter cannot be opened. In addition, when driving at high speed in low temperature weather (low wind resistance is required), due to the operation of acceleration and deceleration of the vehicle, the shutter will be frequently opened, but at this time the brake disc temperature is low and does not need to be cooled. This structure will bring a bad experience. SUMMARY

[0007] The embodiment of the present application provides a variable wind resistance wheel ornament cover device and a control method thereof, to solve the problem that the cooling area formed by opening or closing the decorative cover sheet is controlled by the centrifugal force change caused by the wheel speed, resulting in the mismatching of the cooling area and the cooling demand.

[0008] In a first aspect, a variable wind resistance wheel ornament cover device is provided, comprising:

[0009] A wheel ornament plate, one side of which is connected to a wheel connecting shaft; the wheel ornament plate is provided with cooling grooves around the wheel connecting shaft;

[0010] A rotating disc, which is rotatably connected to the wheel connecting shaft and has a worm gear fixed thereon, the worm gear being sleeved on the wheel connecting shaft; the rotating disc is provided with wind resistance blocking pieces corresponding to the cooling grooves on the outer periphery thereof, the wind resistance blocking pieces being attached to the corresponding side of the wheel ornament plate;

[0011] A signal acquisition member for detecting the temperature of the rim under braking heat;

[0012] An electric control worm assembly, which is engaged with the worm gear and is used to rotate the rotating disc according to the temperature detected by the signal acquisition member, so as to change the actual cooling area of the cooling grooves.

[0013] In some embodiments, the rotating disc comprises a circular ring part and a tapered cylindrical part; the circular ring part is coaxially rotatably connected to the wheel connecting shaft, and the worm gear is connected to the circular ring part; the tapered cylindrical part has a larger outer diameter at one end close to the wheel ornament plate, and the outer periphery of the tapered cylindrical part is connected to the wind resistance blocking pieces; the tapered cylindrical part has a smaller outer diameter at the other end coaxially connected to the outer periphery of the circular ring part.

[0014] The electric control worm assembly is fixed on the wheel ornament plate and extends into the tapered cylindrical part to be engaged with the worm gear.

[0015] In some embodiments, the side of the wheel ornament plate on which the wheel connecting shaft is mounted is provided with an outer peripheral clamping ring, and a limiting groove is formed between the outer peripheral clamping ring and the wheel ornament plate; one end of the wind resistance blocking piece away from the tapered cylindrical part is located in the limiting groove.

[0016] The bearing is coaxially fixed in the worm gear, the limiting shaft cylinder is rotationally connected in the bearing, and one end of the limiting shaft cylinder away from the annular part is in contact with the wheel ornament plate.

[0017] In some embodiments, the wheel ornament plate is provided with a solar panel, the solar panel is sealed with the conical cylindrical part to form a sealed space, and the electric control worm assembly is located in the sealed space.

[0018] In some embodiments, the electric control worm assembly comprises an energy storage unit, a control unit, a motor and a worm; the worm is engaged with the worm gear; the energy storage unit is used for storing the electric energy of the solar panel; the control unit is connected with the signal acquisition part and the motor, and is also connected with the energy storage unit and the vehicle battery; the motor and the worm are in transmission connection.

[0019] In some embodiments, the rotating disc comprises an annular part; the annular part is coaxially rotationally connected on the wheel connecting shaft, and the worm gear is connected with the annular part; the outer periphery of the annular part is connected with the wind resistance blocking piece; the wind resistance blocking piece and the annular part are located in the same plane; the plane is perpendicular to the central axis of the wheel connecting shaft;

[0020] The electric control worm assembly is used for being fixed on the wheel.

[0021] In some embodiments, a plurality of the heat dissipation grooves are circularly arrayed with the center of the wheel ornament plate as the center; each heat dissipation groove extends along the radial direction of the wheel ornament plate; the distribution mode and size of the plurality of wind resistance blocking pieces are the same as those of the plurality of heat dissipation grooves.

[0022] The side edge of the wind resistance blocking piece in the radial direction has a circular arc transition part.

[0023] In some embodiments, the wheel connecting shaft is provided with a first clamping part for clamping with the center of the wheel;

[0024] The side surface of the wheel ornament plate on which the wheel connecting shaft is mounted is provided with a plurality of second clamping parts for clamping with the wheel; the second clamping part is configured to:

[0025] The plurality of second clamping parts are circularly arrayed with the center of the wheel ornament plate as the center;

[0026] The connecting line of the two adjacent second clamping parts and the center of the wheel ornament plate forms a wind resistance blocking piece movable area; the part corresponding to each wind resistance blocking piece movable area on the side surface of the wheel ornament plate comprises a shielding part for shielding two wind resistance blocking pieces, and two heat dissipation grooves.

[0027] In some embodiments, the signal acquisition part comprises a TPMS sensor, the TPMS sensor is used for being mounted on the rim and located in the cavity of the tire.

[0028] In a second aspect, a control method of the variable wind resistance wheel trim cover device is provided, which comprises the following steps:

[0029] The temperature of the rim under braking heat is detected by the signal acquisition member, and compared with a set value:

[0030] If the detected temperature is less than or equal to the first set value, the electric control worm assembly is not started, and the wind resistance blocking piece closes the heat dissipation groove;

[0031] If the detected temperature is greater than the first set value and less than the second set value, the electric control worm assembly is started to drive the wind resistance blocking piece to rotate, so that each heat dissipation groove is generally open;

[0032] If the detected temperature is greater than the second set value, the electric control worm assembly is started to drive the wind resistance blocking piece to rotate, so that all heat dissipation grooves are completely open.

[0033] The technical scheme provided by the present application has the following beneficial effects:

[0034] The variable wind resistance wheel trim cover device and the control method thereof provided by the embodiments of the present application have the following advantages: the wheel trim plate has heat dissipation grooves, the wheel trim plate is fixedly connected with the wheel through a wheel connecting shaft, a rotating disc is rotationally connected to the connecting shaft and is provided with wind resistance blocking pieces corresponding to the heat dissipation grooves; the rotating disc is provided with a worm gear; in addition, an electric control worm assembly and a signal acquisition member are matched; in use, the electric control worm assembly and the worm gear are engaged; the electric control worm assembly is used to rotate the rotating disc according to the temperature detected by the signal acquisition member, so as to change the position of the wind resistance blocking piece, and finally the actual heat dissipation area of the heat dissipation groove can be changed.

[0035] The wind resistance blocking piece is rotatable relative to the wheel trim plate, and independent rotation under different working conditions of the vehicle is realized; in addition, due to the self-locking structure control of the worm gear, the wind resistance blocking piece cannot be reversed by itself, and is completely controlled by the electric control worm, so that the wind resistance blocking piece can remain unchanged in any open or closed state, which not only meets the demand of low wind resistance at high speed, but also accurately meets the demand of braking heat dissipation, and changes the heat dissipation area; thus, the problem that the heat dissipation area does not match the heat dissipation demand when the centrifugal force change generated by the wheel speed is used for control is overcome. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0037] Figure 1The schematic view of the variable wind resistance wheel ornament cover device provided by the embodiment of the present application is connected with the wheel rim;

[0038] Figure 2 The schematic view of the variable wind resistance wheel ornament cover device provided by the embodiment of the present application is connected with the wheel rim;

[0039] Figure 3 The schematic view of the variable wind resistance wheel ornament cover device provided by the embodiment of the present application is connected with the wheel rim;

[0040] Figure 4 The schematic view of the variable wind resistance wheel ornament cover device provided by the embodiment of the present application is connected with the wheel rim;

[0041] Figure 5 The schematic view of the variable wind resistance wheel ornament cover device provided by the embodiment of the present application is connected with the wheel rim;

[0042] Figure 6 The schematic view of the variable wind resistance wheel ornament cover device provided by the embodiment of the present application is connected with the wheel rim;

[0043] Figure 7 The schematic view of the variable wind resistance wheel ornament cover device provided by the embodiment of the present application is connected with the wheel rim;

[0044] Figure 8 The schematic view of the variable wind resistance wheel ornament cover device provided by the embodiment of the present application is connected with the wheel rim;

[0045] Figure 9 The schematic view of the variable wind resistance wheel ornament cover device provided by the embodiment of the present application is connected with the wheel rim.

[0046] In the figure: 1, wheel ornament plate; 2, wheel connecting shaft; 3, heat dissipation groove; 4, rotating disc; 400, annular part; 401, tapered cylindrical part; 5, worm wheel; 6, wind resistance blocking piece; 7, signal acquisition piece; 8, electric control worm assembly; 9, outer peripheral clamping ring; 10, bearing; 11, limiting shaft cylinder; 12, solar panel; 13, first clamping piece; 14, second clamping piece. DETAILED DESCRIPTION

[0047] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0048] The variable wind resistance wheel ornament cover device and the control method thereof provided by the embodiments of the present application can solve the problem that the heat dissipation area formed by the opening or closing of the decorative cover piece is controlled by the centrifugal force generated by the wheel speed, resulting in the mismatch between the heat dissipation area and the heat dissipation demand.

[0049] Figures 1-4 A variable wind resistance wheel cover device, comprising: a wheel cover plate 1, a wheel connecting shaft 2, a rotating disc 4, a worm gear 5 and a wind resistance blocking piece 6.

[0050] The wheel connecting shaft 2 is vertically arranged at the center of one side of the wheel cover plate 1 and is used for connecting with the wheel; and the wheel cover plate 1 is provided with a plurality of heat dissipation grooves 3 around the wheel connecting shaft 2.

[0051] The rotating disc 4 is coaxially connected to the wheel connecting shaft 2 and is provided with the worm gear 5 which is sleeved on the wheel connecting shaft 2; the rotating disc 4 is provided with the wind resistance blocking piece 6 corresponding to the heat dissipation groove 3 around the outer periphery, and the wind resistance blocking piece 6 is attached to the side of the wheel cover plate 1.

[0052] A signal acquisition part 7 is arranged for detecting the temperature of the wheel rim under braking heat;

[0053] An electric control worm assembly 8 is engaged with the worm gear 5; the electric control worm assembly 8 is used for rotating the rotating disc 4 according to the temperature detected by the signal acquisition part 7, so as to change the position of the wind resistance blocking piece 6 relative to the heat dissipation groove 3, thereby changing the actual heat dissipation area of the heat dissipation groove 3.

[0054] The wheel cover plate is provided with the heat dissipation groove, is fixedly connected with the wheel through the wheel connecting shaft, is rotatably connected to the connecting shaft and is provided with the wind resistance blocking piece corresponding to the heat dissipation groove around the outer periphery; the rotating disc is provided with the worm gear; the electric control worm assembly and the signal acquisition part are further arranged; in use, the electric control worm assembly is engaged with the worm gear; the electric control worm assembly is used for rotating the rotating disc according to the temperature detected by the signal acquisition part, so as to change the position of the wind resistance blocking piece and finally change the actual heat dissipation area of the heat dissipation groove.

[0055] The wind resistance blocking piece is rotatable relative to the wheel cover plate, so as to realize independent rotation under different working conditions of the vehicle; in addition, the wind resistance blocking piece cannot be reversely rotated by itself due to the self-locking structure of the worm gear, is completely controlled by the electric control worm and can be kept in any opening or closing state, so as to adapt to the demand of low wind resistance at high speed and accurately adapt to the braking heat dissipation demand and change the heat dissipation area; thus, the problem that the heat dissipation area does not match the heat dissipation demand when the centrifugal force change caused by the wheel speed is used for control is overcome.

[0056] In some preferred embodiments, the mounting space for the electric control worm assembly 8 is provided and is isolated from the external space, so as to avoid the influence of dust and sludge on the electric control worm assembly 8 during the driving of the wheel; therefore, the rotating disc 4 is provided as follows:

[0057] The rotating disc 4 comprises a circular ring part 400 and a conical cylindrical part 401; the circular ring part 400 is coaxially connected to the wheel connecting shaft 2, and the worm gear 5 is fixedly connected to the circular ring part 400; the conical cylindrical part 401 has a larger outer diameter at one end, which is close to the wheel ornament plate 1, and the outer periphery of the conical cylindrical part 401 is connected to the wind resistance blocking piece 6; the conical cylindrical part 401 has a smaller outer diameter at the other end, which is coaxially connected to the outer periphery of the circular ring part 400;

[0058] When the conical cylindrical part 401 contacts the wheel ornament plate 1 to form a sealed mounting space, the electric control worm assembly 8 is fixed to the wheel ornament plate 1 and extends into the conical cylindrical part 401 to mesh with the worm gear 5.

[0059] Further, the conical cylindrical part 401 in the above structure moves and slides in the axial direction of the wheel connecting shaft 2, resulting in a non-sealed mounting space; in addition, there is a large friction force when the worm gear 5 and the wheel connecting shaft 2 are connected to rotate, which is not convenient for long-term use, and therefore the following improvement is made:

[0060] The wheel ornament plate 1 is provided with an outer peripheral clamping ring 9 on the side surface of the wheel connecting shaft 2, and a limiting groove is formed between the outer peripheral clamping ring 9 and the wheel ornament plate 1; the end of the wind resistance blocking piece 6 away from the conical cylindrical part 401 is located in the limiting groove;

[0061] The worm gear 5 is coaxially fixedly connected with a bearing 10, the bearing 10 is rotatably connected with a limiting shaft cylinder 11, and the end of the limiting shaft cylinder 11 away from the circular ring part 400 contacts the wheel ornament plate 1; the wheel connecting shaft 2 passes through the bearing 10 and the limiting shaft cylinder 11.

[0062] The above structure limits the larger end and the smaller end of the conical cylindrical part 401 through the outer peripheral clamping ring 9 and the limiting shaft cylinder 11, respectively.

[0063] Of course, the present application also proposes another structure of the rotating disc 4, which is specifically:

[0064] The rotating disc 4 comprises a circular ring part 400; the circular ring part 400 is coaxially connected to the wheel connecting shaft 2, and the worm gear 5 is connected to the circular ring part 400; the outer periphery of the circular ring part 400 is connected to the wind resistance blocking piece 6; the wind resistance blocking piece 6 and the circular ring part 400 are located in the same plane; the plane is perpendicular to the central axis of the wheel connecting shaft 2; the electric control worm assembly 8 is used to be fixed to the wheel

[0065] In some preferred embodiments, in order to realize the energy provided to drive the electric control worm assembly 8 and save the energy of the vehicle battery, the following settings are made:

[0066] The wheel ornament plate 1 is provided with a solar panel 12, the solar panel 12 is sealed with the conical cylindrical part 401 to form a sealed space, and the electric control worm assembly 8 is located in the sealed space. The electric control worm assembly 8 comprises an energy storage unit, a control unit, a motor and a worm; the worm is engaged with the worm gear 5; the energy storage unit is used for storing the electric energy of the solar panel 12; the control unit is connected with the signal acquisition piece 7 and the motor, and is also connected with the energy storage unit and the vehicle battery; and the motor and the worm are in transmission connection.

[0067] The solar panel 12 can store and convert solar energy into electric energy, and when the solar energy cannot provide electric energy, the electric energy of the vehicle battery is used.

[0068] In some preferred embodiments, the structures of the heat dissipation grooves 3 and the wind blocking pieces 6 are described, a plurality of heat dissipation grooves 3 are distributed in a circular array with the center of the wheel ornament plate 1 as the center; each heat dissipation groove 3 extends along the radial direction of the wheel ornament plate 1; the distribution mode and size of the plurality of wind blocking pieces 6 are the same as those of the plurality of heat dissipation grooves 3; the side edge of the wind blocking piece 6 in the radial direction has a circular arc transition part. The design of the circular arc transition part facilitates the contact between the wind blocking piece 6 and the wheel ornament plate 1, and the alternation between the plurality of heat dissipation grooves 3.

[0069] Reference Figures 2-8 In some preferred embodiments, the following designs are used for the stable installation of the wheel ornament plate 1:

[0070] The wheel connecting shaft 2 is provided with a first clamping piece 13 for clamping with the center of the wheel;

[0071] The side surface of the wheel ornament plate 1 on which the wheel connecting shaft 2 is installed is provided with a plurality of second clamping pieces 14 for clamping with the wheel; the second clamping piece 14 is configured to:

[0072] The plurality of second clamping pieces 14 are distributed in a circular array with the center of the wheel ornament plate 1 as the center;

[0073] The line connecting the two adjacent second clamping pieces 14 and the center of the wheel ornament plate 1 forms a wind blocking piece movable area; the part corresponding to each wind blocking piece movable area on the side surface of the wheel ornament plate 1 comprises a shielding part for shielding two wind blocking pieces 6 and two heat dissipation grooves 3. The above arrangement makes the wind blocking piece movable area have the shielding part and the heat dissipation groove 3, thereby facilitating the rotation of the wind blocking piece 6 to close or open the heat dissipation groove 3, which can be referred to Figures 7-8 In addition, the first clamping piece 13 and the second clamping piece 14 can replace the wheel ornament plate 1, thereby meeting the perception needs of customers for different shapes.

[0074] In some preferred embodiments, the signal acquisition member 7 comprises a TPMS sensor, which is installed on the wheel rim and located in the cavity of the tire. The size of the ventilation area of the heat dissipation groove 3 is changed by using the temperature change value of the TPMS sensor, so that the control method of the brake heat dissipation problem can be accurately adjusted adaptively. The heat generated by braking is transmitted to the cavity of the wheel rim and the tire through two transmission paths, i.e., air and the mounting surface attached to the wheel rim. The TPMS sensor can accurately monitor the temperature change, accurately control the rotation of the cover according to the brake heat dissipation demand of the vehicle operating state in real time, change the ventilation area, and change the size of the ventilation area opening according to the heat dissipation demand of the temperature change value, so as to adapt to the heat dissipation and wind resistance reduction demands. Therefore, the setting of the TPMS sensor can accurately reflect the temperature change.

[0075] Reference Figure 9 A control method of a variable wind resistance wheel cover device, comprising the following steps:

[0076] Detecting the temperature of the wheel rim under the heat generated by braking by using the signal acquisition member 7, and comparing it with the set value:

[0077] If the detected temperature is less than or equal to the first set value, the electric control worm assembly 8 is not started, and the wind resistance block 6 closes the heat dissipation groove 3;

[0078] If the detected temperature is greater than the first set value and less than the second set value, the electric control worm assembly 8 is started to drive the wind resistance block 6 to rotate, so that each heat dissipation groove 3 is generally open;

[0079] If the detected temperature is greater than the second set value, the electric control worm assembly 8 is started to drive the wind resistance block 6 to rotate, so that all heat dissipation grooves 3 are completely open. The first set value is 60℃, and the second set value is 80℃. When opening and closing, the closing or opening can be maintained for a period of time.

[0080] Among them, Figure 9 The full closing of the plug-in of the heat dissipation groove 3 refers to the relative position between the wind resistance block 6 and the heat dissipation groove 3.

[0081] In summary, the wheel cover device provided by the present application can change the ventilation area adaptively. Due to the self-locking structure control of the worm gear, the worm gear plug-in cannot be reversed, and is completely controlled by the electric control worm. It can remain unchanged in any open or closed state, which can adapt to the demand of low wind resistance at high speed and the demand of brake heat dissipation, and can meet the demand of driving and self-locking at the same time, avoiding the control of additional structure. At the same time, it can be self-sufficiently powered by the solar panel, avoiding the complex structure of taking power from other power supply units of the vehicle, and being conducive to environmental protection and energy saving.

[0082] Through real-time monitoring of heat dissipation temperature, the temperature is less than 60 DEG C, 60 DEG C is greater than 80 DEG C, and greater than 80 DEG C, the plug-in ventilation area size of the wheel cover device can be accurately opened according to the required ventilation heat dissipation amount at different temperatures, the real-time demand of low wind resistance and brake heat dissipation under different running states of the wheel is realized, and the opening and closing degree of the plug-in changes, which brings different appearance changes to the wheel, and meets different perception demands of customers on the appearance of the wheel.

[0083] The outer peripheral clamping ring 9 is arranged on one side of the wheel connecting shaft 2, and a limiting groove is formed between the outer peripheral clamping ring 9 and the wheel cover plate 1; one end of the wind resistance blocking piece 6 away from the conical cylindrical portion 401 is located in the limiting groove; the bearing 10 is coaxially and fixedly connected in the worm wheel 5, the limiting shaft cylinder 11 is rotatably connected in the bearing 10, and one end of the limiting shaft cylinder 11 away from the annular portion 400 is in contact with the wheel cover plate 1; the wheel connecting shaft 2 penetrates through the bearing 10 and the limiting shaft cylinder 11, so that the wheel cover plate 1 and the rotating disc 4 can be effectively separated, and the independent rotation of the wind resistance blocking piece 6 on the rotating disc 4 under different working conditions of the vehicle is realized.

[0084] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise expressly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0085] It should be noted that in the present application, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0086] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to these embodiments without departing from the spirit and scope of the application. It is intended that the scope of the application should not be limited by the particular representative embodiments described above.

Claims

1. A variable wind resistance wheel cover device, characterized in that, It includes: A wheel trim panel (1) has a wheel connecting shaft (2) connected to the center of one side; the wheel trim panel (1) has heat dissipation grooves (3) located around the wheel connecting shaft (2); A rotating disk (4) is rotatably connected to the wheel connecting shaft (2), and a worm gear (5) is fixedly connected to it. The worm gear (5) is sleeved on the wheel connecting shaft (2). The outer periphery of the rotating disk (4) is provided with wind deflector plates (6) that correspond one-to-one with the heat dissipation groove (3). The wind deflector plates (6) are attached to the side of the wheel trim panel (1). The signal acquisition device (7) is used to detect the temperature of the wheel rim under braking heat; the signal acquisition device (7) includes a TPMS sensor, which is mounted on the wheel rim and located in the cavity of the tire; An electric worm gear assembly (8) meshes with the worm wheel (5) and is used to rotate the rotating disk (4) according to the temperature detected by the signal acquisition device (7) to change the actual heat dissipation area of ​​the heat dissipation groove (3); The rotating disk (4) includes an annular portion (400) and a conical cylindrical portion (401); the annular portion (400) is coaxially rotatably connected to the wheel connecting shaft (2), and the worm gear (5) is connected to the annular portion (400); the end of the conical cylindrical portion (401) with a larger outer diameter is close to the wheel trim (1), and its outer periphery is connected to the wind deflector (6); the end of the conical cylindrical portion (401) with a smaller outer diameter is coaxially connected to the outer periphery of the annular portion (400); the electric worm gear assembly (8) is fixed on the wheel trim (1) and extends into the conical cylindrical portion (401) to mesh with the worm gear (5); the wheel trim (1) has an outer peripheral retaining ring (9) on one side where the wheel connecting shaft (2) is mounted, and a limiting groove is formed between the outer peripheral retaining ring (9) and the wheel trim (1); the end of the wind deflector (6) away from the conical cylindrical portion (401) is located in the limiting groove; The wheel trim panel (1) is provided with a solar power generation panel (12), which is sealed together with the conical cylindrical part (401) to form a sealed space. The electric control worm gear assembly (8) is located in the sealed space. The electric control worm gear assembly (8) includes an energy storage unit, a control unit, a motor and a worm. The worm meshes with the worm wheel (5). The energy storage unit is used to store the electrical energy of the solar power generation panel (12). The control unit is connected to the signal acquisition component (7) and the motor, and is also connected to the energy storage unit and the vehicle battery. The motor and the worm gear are connected by a drive.

2. The variable wind resistance wheel cover device as described in claim 1, characterized in that: The worm gear (5) is coaxially fixed with a bearing (10), and a limiting cylinder (11) is rotatably connected inside the bearing (10). The end of the limiting cylinder (11) away from the annular part (400) is in contact with the wheel trim (1); the wheel connecting shaft (2) passes through the bearing (10) and the limiting cylinder (11).

3. The variable wind resistance wheel cover device as described in claim 1, characterized in that: The multiple heat dissipation slots (3) are arranged in a circular array with the center of the wheel trim (1) as the center; each heat dissipation slot (3) extends radially along the wheel trim (1); the distribution and size of the multiple wind deflectors (6) are the same as those of the multiple heat dissipation slots (3); The wind deflector (6) has a rounded transition portion on its radial side.

4. The variable wind resistance wheel cover device as described in claim 3, characterized in that: The wheel connecting shaft (2) is provided with a first snap-fit ​​member (13) for snapping with the center of the wheel. The wheel trim panel (1) has a plurality of second snap-fit ​​pieces (14) on one side where the wheel connecting shaft (2) is mounted; the second snap-fit ​​pieces (14) are configured as follows: Multiple second snap-fit ​​pieces (14) are arranged in a circular array with the center of the wheel trim (1) as the center; The line connecting the two adjacent second clips (14) and the center of the wheel trim (1) forms the wind resistance plate activity area; the part on the side of the wheel trim (1) corresponding to each wind resistance plate activity area includes a shielding part for shielding the two wind resistance plates (6) and two heat dissipation grooves (3).

5. A control method for a variable wind resistance wheel cover device as described in any one of claims 1-4, characterized in that, It includes the following steps: The temperature of the wheel rim under braking heat is detected by the signal acquisition component (7) and compared with the set value: If the detected temperature is less than or equal to the first set value, the electric worm gear assembly (8) will not start, and the wind baffle (6) will close the heat dissipation slot (3). If the detected temperature is greater than the first set value and less than the second set value, the electric control worm gear assembly (8) is activated to drive the wind baffle (6) to rotate so that half of each heat dissipation slot (3) is open; If the detected temperature is greater than the second set value, the electric control worm gear assembly (8) is activated to drive the wind deflector (6) to rotate so that all heat dissipation slots (3) are fully open.

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