Electronic outside rear-view mirror folding mechanism with automatic detection function

Abstract

The utility model relates to an electronic outside rear-view mirror folding mechanism with an automatic detection function, which comprises a fixed seat body and a folding arm, and further comprises a magnet connected to the folding arm or the fixed seat body, and an electronic outside rear-view mirror folding mechanism with an automatic detection function, and the connecting part of the fixed seat body and the folding arm is rotatably connected through a pin shaft; the Hall sensor is connected to the fixed seat body or the folding arm and faces the magnet, and relative rotation occurs between the Hall sensor and the magnet along with rotation of the folding arm; the control module is used for receiving the signal of the Hall sensor, calculating and processing the signal and sending the signal outwards; and the Hall sensor is connected with the control module. Along with the rotation of the folding arm, the Hall sensor and the magnet rotate relatively, the Hall sensor senses the magnetic field change of the magnet to measure the rotation angle, and corresponding information is displayed.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic outside rear -view mirror field, concretely relates to a kind of electronic outside rear -view mirror folding mechanism with automatic detection function. BACKGROUND

[0002] Automobile rearview mirror can observe the situation behind the car, reduce rear and side rear sight blind area, increase driving safety.

[0003] Since July 1, 2023, China has formally implemented GB 15084-2022 "Performance and Installation Requirements for Indirect Vision Devices of Motor Vehicles" standard, allowing passenger cars to use electronic outside rearview mirrors. Electronic outside rearview mirrors have the advantages of reducing wind resistance and improving energy efficiency. Compared with traditional rearview mirrors, electronic outside rearview mirrors can capture a wider surrounding environment through cameras, reducing blind spots. Electronic outside rearview mirrors have night vision capabilities that traditional rearview mirrors cannot match, enhancing night driving safety. Electronic outside rearview mirrors are small and compact, further reducing the width of the vehicle when folded, making them easier to drive in tight spaces.

[0004] Electronic outside rearview mirrors capture real-time images of the vehicle's surroundings through high-definition cameras, and after image cropping, correction, and other processing, display the images on the in-car display screen.

[0005] The existing folding mechanism has low precision. If the camera angle deviates slightly, such as by a few tenths of a degree to 3 degrees, it will affect the final field of view display result (non-optimal field of view image). However, this change may not be identifiable by the driver.

[0006] Therefore, there is a need for an electronic outside rearview mirror folding mechanism with automatic detection function to detect whether the electronic outside rearview mirror folding mechanism is in place. UTILITY MODEL CONTENTS

[0007] To address the deficiencies in the prior art, the utility model provides an electronic outside rearview mirror folding mechanism with automatic detection function to solve the problem that drivers cannot accurately determine whether the camera of the electronic outside rearview mirror is deviated in the prior art.

[0008] To achieve the above purpose, the utility model provides the following technical scheme:

[0009] The electronic outside rearview mirror folding mechanism with automatic detection function comprises a fixed seat body and a folding arm. The connection part between the fixed seat body and the folding arm is rotatably connected by a pin shaft. The two opposite rotation surfaces between the connection part of the fixed seat body and the folding arm are provided with a concave-convex block structure composed of a concave groove and a convex block. When the fixed seat body and the folding arm rotate relative to each other, the concave-convex block structure changes between the aligned and misaligned states.

[0010] Also comprising:

[0011] a magnet connected to the folding arm or the fixed seat body;

[0012] a Hall sensor connected to the fixed seat body or the folding arm and facing the magnet; the Hall sensor and the magnet rotate relatively with the rotation of the folding arm;

[0013] a control module receiving the signal of the Hall sensor and sending the signal out after calculation and processing; the Hall sensor is connected to the control module.

[0014] Preferably, the control module is connected to a display module to display the corresponding angle information through the display module.

[0015] Preferably, the pin shaft is connected to a driving motor, and the control module is connected to the driving motor.

[0016] Preferably, the pin shaft is sleeved with the compression spring at one end, and the other end of the pin shaft passes through the connecting part of the folding arm and the fixed seat body and is limited in the axial direction by the fixed seat body; the compression spring is compressed between the pin shaft and the folding arm to tightly press the fixed seat body and the folding arm together, so that the rotation surfaces of the fixed seat body and the folding arm are tightly attached together.

[0017] Preferably, two limiting shafts are arranged on the fixed seat body and are circumferentially spaced apart, and the folding arm is provided with a top block corresponding to the limiting shafts.

[0018] Preferably, the inner surface of the pin shaft hole of the fixed seat body is provided with an L-shaped guide groove, and the end of the pin shaft is provided with a sliding block capable of moving along the L-shaped guide groove.

[0019] Preferably, a stop ring for installing the compression spring is arranged at the end of the pin shaft close to the folding arm.

[0020] Preferably, the recesses are three groups and are circumferentially distributed, and the protrusions correspond to the recesses one by one.

[0021] The utility model discloses the beneficial effects of:

[0022] The folding arm can rotate around the pin shaft, and the magnet and the corresponding Hall sensor are arranged on the folding arm and the fixed seat body respectively; with the rotation of the folding arm, the Hall sensor and the magnet rotate relatively, the Hall sensor senses the magnetic field change of the magnet to measure the rotation angle, and the corresponding information is displayed. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is the schematic diagram of the folding mechanism of electronic outside rearview mirror;

[0024] Figure 2It is a structure diagram of an electronic outside rearview mirror folding mechanism.

[0025] Figure 3 It is a structure diagram of an electronic outside rearview mirror folding mechanism. Figure 2 It is a structure diagram of an electronic outside rearview mirror folding mechanism.

[0026] Figure 4 It is a structure diagram of an electronic outside rearview mirror folding mechanism.

[0027] Wherein: 100-fixed seat body; 101-pin shaft hole; 102-L-shaped guide groove; 110-rotation surface; 120-limiting shaft; 111-groove; 200-folding arm; 210-connection part; 220-top block; 221-step surface; 300-pin shaft; 301-sliding block; 310-retaining ring; 400-compression spring; 510-magnet; 520-Hall sensor. DETAILED DESCRIPTION

[0028] The specific embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are only used to illustrate the present application, but not to limit the scope of the present application.

[0029] The up, down, left, right, inner, outer, front end, rear end, head, tail and other orientation or positional relationship terms in the present application file are established based on the orientation or positional relationship shown in the drawings. Different drawings may change the corresponding positional relationship, so it cannot be understood as a limitation on the scope of protection.

[0030] In the present application, the terms "mounting", "connecting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, it can also be detachably connected, it can also be integrally connected, it can also be mechanically connected, it can also be electrically connected or can communicate with each other, it can also be directly connected, it can also be indirectly connected through an intermediate medium, it can be the interconnection of two components, or it can be the interaction relationship of two components. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific situation.

[0031] As shown in Figures 1 to 4 The present embodiment records an electronic outside rearview mirror folding mechanism, mainly including a fixed seat body 100 and a folding arm 200, and the fixed seat body 100 and the folding arm 200 are made of metal material, such as stainless steel material, to ensure the structural strength.

[0032] One end of the fixed seat body 100 is fixedly connected with the vehicle body, and the other end and the connection part 210 of the folding arm are rotatably connected through the pin shaft 300, and the two opposite rotation surfaces between the fixed seat body 100 and the connection part 210 of the folding arm are provided with a concave-convex block structure composed of a groove and a convex block, see Figure 4In the embodiment, the fixed seat 100 is provided with a pin shaft hole 101 for connecting the pin shaft 300, and the rotating surface 110 of the fixed seat 100 is provided with three sets of circumferentially distributed grooves 111, and the rotating surface of the connecting part 210 of the folding arm is provided with three sets of protrusions corresponding to the grooves 111. The edges of the protrusions and the inner angles of the grooves are both circular arcs, which facilitates the sliding of the protrusions out of the grooves and the folding. When the fixed seat 100 and the folding arm 200 rotate relative to each other, the protrusion-groove structure changes between the aligned and misaligned states.

[0033] The fixed seat 100 is provided with two limiting shafts 120 circumferentially spaced apart, and the folding arm is provided with top blocks 220 corresponding to the limiting shafts. The top blocks 220 are located between the two limiting shafts 120, and the structure limits the rotation range of the folding arm.

[0034] The pin shaft 300 is provided with a stop ring 310 near the folding arm for mounting a compression spring. The pin shaft is sleeved with a compression spring 400, and the folding arm is provided with a stepped surface 221 for facilitating the installation of the compression spring 400.

[0035] The other end of the pin shaft 300 passes through the connecting part 210 of the folding arm and the fixed seat 100, and is limited in the axial direction by the fixed seat 100. The compression spring 400 is compressed between the stop ring 310 of the pin shaft and the folding arm 200, and is used to press the fixed seat 100 and the folding arm 200 tightly together, so that the rotating surfaces of the fixed seat 100 and the folding arm 200 are tightly attached together.

[0036] In the embodiment, the inner surface of the pin shaft hole of the fixed seat 100 is provided with an L-shaped guide groove 102, and the end of the pin shaft is provided with a slider 301 that can move along the L-shaped guide groove, so as to realize the limitation of the pin shaft in the axial direction by the fixed seat. During installation, the slider 301 of the pin shaft is first slid along the vertical part of the L-shaped guide groove 102, and after reaching the predetermined position, the pin shaft 300 is rotated so that the slider 301 slides along the horizontal part of the L-shaped guide groove 102, achieving the purpose of limiting the pin shaft in the axial direction by the fixed seat.

[0037] In addition, a magnet 510 is fixedly installed on the fixed seat, and a Hall sensor 520 is installed on the connecting part 210 of the folding arm, and the Hall sensor faces the magnet; with the rotation of the folding arm, the Hall sensor and the magnet rotate relative to each other. Of course, the magnet and the Hall sensor can also be arranged in the opposite positions.

[0038] The Hall sensor 520 is connected with the control module. With the rotation of the folding arm 200, the Hall sensor 520 senses the magnetic field change of the magnet 510 to measure the rotation angle, and transmits the rotation angle information to the controller. The control module receives the signal of the Hall sensor, sends the signal outward after calculation and processing; the control module is connected with the display module, and the corresponding angle information is displayed through the display module. Remind the driver whether the camera of the electronic outside rearview mirror deviates. Or use the alarm module, when the angle deviates from the predetermined value, the alarm module gives an alarm.

[0039] Of course, the folding mechanism of the electronic outside rearview mirror can also be electric folding. The pin shaft 300 is connected with the driving motor, and the control module is connected with the driving motor. The Hall sensor 520 senses the magnetic field change of the magnet 510 to measure the rotation angle, and transmits the rotation angle information to the controller, and the controller feeds back the information to the driving motor.

[0040] Although the principle of the present application has been described in detail above in combination with the preferred embodiments of the present application, those skilled in the art should understand that the above embodiments are only illustrative implementations of the present application, and are not a limitation on the scope of the present application. The details in the embodiments do not constitute a limitation on the scope of the present application. Any equivalent transformation, simple replacement, etc. based on the technical solution of the present application without departing from the spirit and scope of the present application, all fall within the scope of protection of the present application.

Claims

1. An electronic outside mirror folding mechanism with automatic detection function, characterized in that, The fixed seat body and the folding arm are rotatably connected through a pin shaft between the connecting parts of the fixed seat body and the folding arm, and a concave-convex block structure composed of a groove and a block is arranged on two opposite rotation surfaces between the connecting parts of the fixed seat body and the folding arm, and the concave-convex block structure changes between alignment and misalignment when the fixed seat body and the folding arm rotate relative to each other; Further comprising: A magnet connected to the folding arm or the fixed seat body; A Hall sensor connected to the fixed seat body or the folding arm and facing the magnet, and the Hall sensor and the magnet rotate relative to each other as the folding arm rotates; A control module receiving signals of the Hall sensor, calculating and processing the signals, and sending the signals outward; the Hall sensor is connected to the control module.

2. The electronic outside mirror folding mechanism with automatic detection function according to claim 1, characterized in that The control module is connected to a display module, and corresponding angle information is displayed through the display module.

3. The electronic outside mirror folding mechanism with automatic detection function according to claim 1, characterized in that One end of the pin shaft is sleeved with a compression spring, the other end of the pin shaft passes through the connecting part of the folding arm and the fixed seat body, is limited in the axial direction by the fixed seat body, and the compression spring is compressed between the pin shaft and the folding arm, so as to tightly press the fixed seat body and the folding arm together, so that the rotation surfaces of the fixed seat body and the folding arm are tightly attached together.

4. The electronic outside mirror folding mechanism with automatic detection function according to claim 1, characterized in that Two limiting shafts are arranged on the fixed seat body and are circumferentially spaced apart, and a top block corresponding to the limiting shafts is arranged on the folding arm.

5. The electronic outside mirror folding mechanism with automatic detection function according to claim 3, characterized in that An L-shaped guide groove is arranged on the inner surface of the pin shaft hole of the fixed seat body, and the end of the pin shaft is provided with a slider capable of moving along the L-shaped guide groove.

6. The electronic outside mirror folding mechanism with automatic detection function according to claim 1, characterized in that The groove has three groups and is circumferentially distributed, and the block and the groove correspond one by one.

7. The electronic outside mirror folding mechanism with automatic detection function according to claim 1, characterized in that The pin shaft is connected to a driving motor, and the control module is connected to the driving motor.

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