Electric sun shield

Abstract

The invention discloses an electric sun shield which comprises an electric driving assembly. The electric driving assembly comprises a support fixedly installed in the sun shield body, a gear motor is fixedly installed on the support, an output shaft of the gear motor is connected with a clutch, a movable gear is installed on a main shaft of the clutch, the main shaft of the clutch is rotationally connected with the support, and an angle sensor is installed between the main shaft of the clutch and the support. The rotating shaft penetrates through the support and is fixedly provided with a static gear meshed with the movable gear. A Hall switch is fixedly installed at the position, close to the pin shaft, in the sun shield body, and a magnet is fixedly installed on the hook. A control main board is fixedly installed in the sun shield body, the control main board is connected with the microphone, the Hall element, the gear motor, the angle sensor and the gear motor through internal circuits, and the control main board is connected with the physical keys through an external circuit penetrating through the rotating shaft. The electric sun shield has the advantages of being capable of improving driving safety performance, simple and stable in structure and convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of automobile sun visors, in particular to an electric sun visor. Background Art

[0002] Cars are equipped with car sun visors, which can block sunlight to prevent the driver from being dazzled by the sunlight and affecting the safety of driving. During use, the car sun visor can rotate relative to the shaft installed on the car to adjust different shading angles. A retaining mechanism is installed in the car sun visor, which cooperates with the shaft through friction to fix the angle of the car sun visor. Therefore, when adjusting the angle of the car sun visor currently used, the driver needs to manually pull the sun visor to overcome the friction between the retaining mechanism and the shaft to adjust it. If the driver adjusts the sun visor during driving, it will affect driving safety and bring potential safety hazards to driving. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by this patent application is how to provide an electric sun visor that can improve driving safety performance, has a simple and stable structure, and is easy to use.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] An electric sun visor, comprising a sun visor body, one end of which is rotatably mounted with a rotating shaft, the rotating shaft being a curved pipe, the rotating shaft passing through the sun visor and rotatably cooperating with a fixing seat, the fixing seat being fixedly mounted on a body sheet metal; a clearance opening is provided on the sun visor body, a pin is fixedly mounted in the clearance opening, a hook capable of being hooked with the pin is fixedly mounted on the body sheet metal; and an electric drive assembly is also included;

[0006] The electric drive assembly includes a bracket fixedly installed in the sun visor body, a reduction motor fixedly installed on the bracket, the output shaft of the reduction motor is connected to the clutch, the main shaft of the clutch is installed with a moving gear, the main shaft of the clutch is rotatably connected to the bracket, an angle sensor is installed between the main shaft of the clutch and the bracket, the rotating shaft passes through the bracket and a static gear meshing with the moving gear is fixedly installed on the rotating shaft; a Hall switch is fixedly installed near the pin shaft in the sun visor body, and a magnet is fixedly installed on the hook; a control mainboard is fixedly installed in the sun visor body, the control mainboard is connected to the microphone, the Hall element, the reduction motor, the angle sensor, and the reduction motor through an internal circuit, the rotating shaft is hollow, and also includes physical buttons, and the control mainboard is connected to the physical buttons through an external circuit running through the rotating shaft.

[0007] A micro switch electrically connected to the control main board via an internal circuit is fixedly installed in the sun visor body, and a limit cam capable of abutting against the micro switch is fixedly installed at the end of the rotating shaft.

[0008] Wherein, the control mainboard is electrically connected to the speaker through an internal circuit.

[0009] Wherein, the control main board is electrically connected to the vanity mirror main board of the vanity mirror light system through an internal circuit.

[0010] Wherein, the bracket includes two mounting plates arranged opposite to each other, and the mounting plates are fixedly connected by a connecting rod.

[0011] In summary, the electric sun visor has the advantages of improving driving safety, simple and stable structure, and easy use. The specific effects are as follows:

[0012] 1. Allows you to operate the sun visor without leaving the steering wheel, increasing driving safety;

[0013] 2. This solution is compatible with manual and electric operation, does not change the passengers' habits, and makes driving safer;

[0014] 3. Increase the luxury feel of the car and increase passenger experience satisfaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of an electric sun visor according to the present invention.

[0016] Figure 2 for Figure 1 Schematic diagram of the internal structure.

[0017] Figure 3 Schematic diagram of the electric drive assembly.

[0018] Figure 4 for Figure 2 BB cross-sectional view. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings. In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "upper, lower" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the devices or components referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0020] like Figure 1-4As shown, an electric sun visor comprises a sun visor body, one end of which is rotatably mounted with a rotating shaft 2, the rotating shaft being a curved pipe, the rotating shaft passing through the sun visor and rotatably cooperating with a fixing seat 3, the fixing seat being fixedly mounted on a body sheet metal; a clearance opening is provided on the sun visor body, a pin is fixedly mounted in the clearance opening, a hook 4 capable of being hooked with the pin is fixedly mounted on the body sheet metal; and an electric drive assembly is also included;

[0021] The electric drive assembly includes a bracket 5 fixedly installed in the sun visor body, a reduction motor 6 is fixedly installed on the bracket, the output shaft of the reduction motor is connected to a clutch 7, the clutch transmits power according to a fixed torque, and slides when overloaded, and does not transmit power. The main shaft of the clutch is installed with a moving gear 8, and the main shaft of the clutch is rotatably connected to the bracket. An angle sensor 9 is installed between the main shaft of the clutch and the bracket to detect the actual rotation angle of the sun visor. The rotating shaft passes through the bracket and a static gear 10 meshing with the moving gear is fixedly installed on the rotating shaft; a Hall switch 11 is fixedly installed near the pin shaft in the sun visor body, and a magnet is fixedly installed on the hook. The Hall switch senses the magnetic force of the magnet and provides the control main board with information for determining whether the sun visor body is out of the hook; a control main board 12 is fixedly installed in the sun visor body to collect signals, perform logical operations, and issue instructions. The control main board is connected to a microphone 13, a Hall element, a reduction motor, an angle sensor, and a reduction motor through an internal circuit, and the microphone collects voice information in the car. The rotating shaft is hollow and also includes a physical button. The control main board is connected to the physical button through an external circuit 14 that runs through the rotating shaft.

[0022] Electric sun visor principle:

[0023] 1. The motor receives the electrical signal and rotates, and the power is transmitted to the clutch;

[0024] 2. The clutch drives the moving gear to rotate;

[0025] 3. The moving gear transmits power to the stationary gear;

[0026] 4. The stationary gear is fixed to the rotating shaft, and the fixing seat is fixed to the vehicle body;

[0027] 5. Under the reaction of the dynamic force of the moving gear, the entire electric mechanism rotates around the rotating shaft, driving the sun visor body to rotate, thereby realizing the electric flipping function of the sun visor.

[0028] The physical buttons are set on the steering wheel or armrest, and there are 2 physical buttons.

[0029] During implementation, a micro switch 15 electrically connected to the control main board through an internal circuit is fixedly installed in the sun visor body to provide a fixed position action signal, and a limit cam 16 capable of abutting against the micro switch is fixedly installed at the end of the rotating shaft. When the sun visor fits the ceiling, the limit cam squeezes the micro switch to generate an electrical signal, and the sun visor system angle is reset to zero here, preventing the angle control switch from detecting cumulative errors and affecting the rotation position accuracy of the sun visor.

[0030] During implementation, the control main board is electrically connected to the speaker 17 through the internal circuit to provide voice information to the sun visor and exchange information with the occupants.

[0031] During implementation, the control main board is electrically connected to the vanity mirror main board of the vanity mirror light system 18 through an internal circuit to provide lighting when the vanity mirror is used.

[0032] During implementation, the bracket includes two mounting plates arranged opposite to each other, and the mounting plates are fixedly connected by a connecting rod to support and fix the moving parts.

[0033] Overall solution of sun visor:

[0034] 1. Electric up and down flip solution:

[0035] 1. The sun visor control system receives the sun visor action command issued by the passenger through the physical button and microphone, and controls the main board to energize the reduction motor, causing the reduction motor to rotate;

[0036] 2. The control system detects through the angle sensor that the rotation angle of the sun visor body reaches the command position, and cuts off the power to the reduction motor, and the sun visor body hovers at the command position;

[0037] 3. During the deceleration electric up and down flipping process, if external force such as manual force acts on the sun visor body, the control system detects the abnormal angle of the deceleration motor, cuts off the power to the deceleration motor, and switches to manual mode;

[0038] 4. In manual mode, you can switch to electric mode again through the physical button or voice.

[0039] 2. Manual upside down flip solution:

[0040] 1. Manually operate the sun visor body, and the reduction motor is powered off and locked;

[0041] 2. When the operating force reaches the rated torque of the clutch, the clutch is disengaged and the sun visor body is manually operated.

[0042] 3. Manual rollover solution:

[0043] 1. The sun visor body is disengaged from the hook position, the Hall switch senses the change in magnetic force, the control system cuts off the power to the reduction motor, and the sun visor body system switches to manual mode.

[0044] 2. The sun visor body no longer receives button and microphone commands to prevent accidental operation from causing harm to passengers.

[0045] 4. Electric flip control logic:

[0046] 1. Button control logic

[0047] a. Click the forward button and the sun visor will open to the vertical position;

[0048] b. Press and hold the forward button, and the sun visor will continue to rotate forward;

[0049] c. Click the back button and the sun visor will retract to the ceiling position;

[0050] d. Press and hold the backward button and the sun visor will continue to rotate backward.

[0051] 2. Voice control logic

[0052] a. The microphone receives the key words "Xiaohua" and "sun visor", the control system analyzes the voice and issues action instructions to the motor.

[0053] Finally, it should be noted that those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An electric sun visor, comprising a sun visor body, one end of which is rotatably mounted with a rotating shaft, the rotating shaft being a curved pipe, the rotating shaft passing through the sun visor and rotatably cooperating with a fixing seat, the fixing seat being fixedly mounted on a vehicle body sheet metal; a clearance opening is provided on the sun visor body, a pin is fixedly mounted in the clearance opening, and a hook capable of being hooked with the pin is fixedly mounted on the vehicle body sheet metal; characterized in that: Also included are electric drive components; The electric drive assembly includes a bracket fixedly installed in the sun visor body, a reduction motor fixedly installed on the bracket, the output shaft of the reduction motor is connected to the clutch, the main shaft of the clutch is installed with a moving gear, the main shaft of the clutch is rotatably connected to the bracket, an angle sensor is installed between the main shaft of the clutch and the bracket, the rotating shaft passes through the bracket and a static gear meshing with the moving gear is fixedly installed on the rotating shaft; a Hall switch is fixedly installed near the pin shaft in the sun visor body, and a magnet is fixedly installed on the hook; a control mainboard is fixedly installed in the sun visor body, the control mainboard is connected to the microphone, the Hall element, the reduction motor, the angle sensor, and the reduction motor through an internal circuit, the rotating shaft is hollow, and also includes physical buttons, and the control mainboard is connected to the physical buttons through an external circuit running through the rotating shaft.

2. The electric sunshade according to claim 1, characterized in that: A micro switch electrically connected to the control main board via an internal circuit is fixedly installed in the sun visor body, and a limit cam capable of abutting against the micro switch is fixedly installed at the end of the rotating shaft.

3. The electric sunshade according to claim 1, characterized in that: The control mainboard is electrically connected to the speaker through an internal circuit.

4. The electric sunshade according to claim 1, characterized in that: The control main board is electrically connected to the vanity mirror main board of the vanity mirror light system through an internal circuit.

5. The electric sunshade according to claim 1, characterized in that: The bracket comprises two mounting plates arranged opposite to each other, and the mounting plates are fixedly connected by a connecting rod.

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