Automobile rearview mirror integrating multiple early warning functions

Abstract

The utility model relates to an automobile rearview mirror integrating multiple early warning functions, which comprises a mirror ring, a lens and a warning component, the warning component comprises an outer light-transmitting strip arranged at an annular groove at the edge of the front wall of the mirror ring, an inner light-transmitting strip, a light guide and a substrate are sequentially mounted on the rear side of the mirror ring, and a light source and a controller are mounted on a circuit board fixed on the substrate. Light is displayed outwards through the light guide, the inner light-transmitting strip and the outer light-transmitting strip, the light source emits light of different colors according to different detection signals received by the circuit board, and blind area monitoring early warning and non-motor vehicle blind area early warning during parking are displayed respectively. According to the automobile rearview mirror, the double warning functions of non-motor vehicle collision early warning and blind area monitoring early warning are achieved at the mirror ring, and when a person in an automobile opens a door in the parking state of the automobile, two-way warning can be conducted on the person in the automobile and a non-motor vehicle driver outside the automobile; in the driving process of the vehicle, the prompt range of blind area monitoring early warning signals is larger, and the signals are more eye-catching.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile rearview mirrors, in particular to an automobile rearview mirror integrating multiple early warning functions. Background Art

[0002] With the development of autonomous driving technology in recent years, cars have more and more functions to assist safe driving.

[0003] For example, when a car is parked on the side of the road, if the driver and passengers inside the car suddenly open the door without observing, a non-motor vehicle coming from the side or rear blind spot may collide with the open door. For this reason, some cars are equipped with a non-motor vehicle collision warning function to reduce or eliminate the risk of accidents caused by non-motor vehicles colliding with open car doors.

[0004] The German patent with publication number DE102018114331A1 discloses a system and program for reporting the danger of vehicle door opening. Sensor data is generated by different types of sensors attached to various parts of the vehicle body, and an alarm trigger module is notified to trigger an alarm. The alarm can be a speaker, a taillight or an interior light controller. The alarm signal issued can be a flashing taillight or triggering a turn signal of the vehicle.

[0005] From the above-mentioned prior art, the loudspeaker belongs to the sound warning, especially in the area where many vehicles gather, this warning method produces greater noise. Therefore, light warning (taillight or internal light controller) is an indispensable warning method. The warning method of flashing taillights can be seen by people outside the car (non-motor vehicle drivers and pedestrians), but not by people inside the car, and cannot serve as a warning for both parties. The alarm is an internal light controller. For example, the specific warning signal is the flashing of the atmosphere light at the side window inside the car. The first disadvantage is that the non-motor vehicle driver or pedestrian outside the car cannot see it. They do not know that the door of the parked car is about to open, and they will not take avoidance measures at the same time, which has a security loophole; the second disadvantage is that the rear passengers may not see the flashing of the atmosphere light at the side window due to the obstruction of their vision, so it cannot ensure that all passengers in the car are reminded. The warning method of triggering the vehicle turn signal, if not carefully distinguished, will cause the vehicle driver and non-motor vehicle to mistake it for the vehicle turn signal, and there is also a warning risk.

[0006] In summary, the disadvantage of the non-motor vehicle collision warning in the prior art is that it cannot achieve the effect of warning both all occupants of the motor vehicle and the non-motor vehicle driver (or pedestrian), or it is easy to misjudge and fail to achieve the effect of accurate warning.

[0007] There are more than one hidden dangers in car driving safety. As we all know, some visual blind spots in car driving can also bring dangers. Therefore, some cars are currently integrated with blind spot monitoring systems (BSD). When the BSD detects other road users in the blind spots behind the vehicle on both sides during driving, it will display a warning pattern on the rearview mirror lens to warn the driver to assist the driver in changing lanes and driving safely. The warning patterns selected by different customers vary in form, but they are all limited by the lens area, with a small display area, not eye-catching enough, and not obvious enough to remind the driver.

[0008] The aforementioned car driving safety auxiliary warning functions are scattered in various parts of the car body, which can easily confuse the driver and require more attention to these information, which is inconsistent with the concept of a more worry-free, labor-saving and safe driving experience in the future. In addition, the existing warning prompt system is expensive and difficult to popularize in the market. Utility Model Content

[0009] In view of the shortcomings or deficiencies of the above-mentioned prior art, the technical problem to be solved by the utility model is to provide a car rearview mirror integrating multiple warning functions, realizing the dual warning functions of blind spot monitoring warning and non-motor vehicle collision warning at the mirror ring, and can give two-way warnings to the occupants of the car and the non-motor vehicle drivers outside the car when the vehicle is parked and the door is opened; during the driving of the vehicle, the blind spot monitoring warning signal prompt range is larger and more eye-catching.

[0010] In order to solve the above technical problems, the utility model has the following structure:

[0011] A car rearview mirror with integrated multiple warning functions comprises a mirror ring with a lens built in the mirror ring, and a warning component, the warning component comprising an outer light-transmitting strip arranged at the annular groove on the edge of the front wall of the mirror ring, and an inner light-transmitting strip, a light guide and a substrate installed in sequence on the rear side of the mirror ring, a circuit board fixed on the substrate, and a light source and a controller installed on the circuit board, the outer light-transmitting strip, the inner light-transmitting strip and the light guide are all closed annular strips, the light of the light source is displayed to the outside through the light guide, the light-transmitting inner light-transmitting strip and the outer light-transmitting strip, the controller sends a collision warning signal according to the collision warning data sent by the sensor detecting the collision, triggers the light source to emit flashing light of a specific color, and issues a non-motor vehicle collision warning.

[0012] The controller sends a blind spot warning signal based on the blind spot monitoring data sent by the sensors that detect the blind spots on both sides of the rear of the car, triggering the light source to emit flashing light of another color to carry out blind spot monitoring and warning.

[0013] When a non-motor vehicle collision warning is being performed, the light source emits a flashing red light. When a blind spot monitoring warning is being performed, the light source emits a flashing amber light.

[0014] The light source is a dual-core LED lamp.

[0015] The controller controls the flashing frequency of the light source according to the distance between the car and non-motor vehicles or other vehicles while driving. The closer the distance, the higher the flashing frequency, and warnings are given in different levels.

[0016] The mirror ring is made of ASA material, and the outer light-transmitting strip is made of PMMA material. The mirror ring and the outer light-transmitting strip are integrally formed using a two-color injection molding process. A rear annular groove is injection-molded at the corresponding position of the outer light-transmitting strip on the rear side of the mirror ring. The substrate, light guide, and inner light-transmitting strip are assembled into one on the outside and then fixed in the rear annular groove by the buckles on the substrate.

[0017] The mirror ring is made of black ASA material, and the outer light-transmitting strip is made of smoked PMMA material.

[0018] When assembling the substrate, light guide and inner light-transmitting strip, the substrate is placed on the assembly tool, the circuit board is clamped in the cavity of the substrate, and then the light guide is placed. The light guide is positioned and installed with the positioning holes on the circuit board, and finally the inner light-transmitting strip is placed. The substrate is made of ABS material, and the inner light-transmitting strip is made of PC material with light diffusion properties. The inner light-transmitting strip is connected to the substrate by ultrasonic welding, and the light guide is fixed between the inner light-transmitting strip and the substrate.

[0019] The outer light-transmitting strip, the inner light-transmitting strip and the mirror ring are integrally formed by three-color injection molding, the light guide is arranged between the inner light-transmitting strip and the substrate, and the substrate and the inner light-transmitting strip are ultrasonically welded.

[0020] Compared with the prior art, the automobile rearview mirror of the utility model integrating multiple warning functions has the following advantages:

[0021] When a person in the car opens the door when the vehicle is parked, the non-motor vehicle collision warning uses a flashing ring light at the rearview mirror ring as a prompt, which can attract the attention of all people in the car, especially the attention of non-motor vehicle drivers and pedestrians outside the car, and serve as a warning to both parties. Both parties can take timely measures to avoid accidents. Compared with only one party seeing the warning signal and ignoring the signal reminder, the utility model is safer, especially enhancing the personal safety of non-motor vehicle drivers.

[0022] During vehicle driving, the blind spot monitoring warning signal is changed from being displayed on the mirror surface to being displayed around the mirror circle. The warning range is larger, more eye-catching, and safer for driving. The warning signal does not occupy the surface of the mirror and does not affect the function of the rearview mirror itself.

[0023] Therefore, the dual warning functions of blind spot monitoring warning and non-motor vehicle collision warning are realized at the mirror ring, which reduces one warning system. The structure is simple and the cost is low. The driver only needs to focus on one position and does not need to disperse more energy, making it easier to receive information.

[0024] The utility model provides graded warning by increasing the flashing frequency of the lights, provides more accurate warning information to relevant personnel, and can urge relevant personnel to take emergency risk avoidance measures in an emergency, thereby enhancing the safety of vehicle use.

[0025] The light source adopts a double-core LED lamp, and one light source can emit light of two colors, which simplifies the structure of the warning component and has a low cost.

[0026] The lens ring and the outer light-transmitting strip are formed in one piece by a two-color injection molding process. Compared with split injection molding and then connecting, the assembly process is omitted, and the outer surface of the one-piece molding is smoother and more beautiful. First, the substrate, light guide, and inner light-transmitting strip are assembled into one piece on the outside, and then installed in the rear annular groove behind the lens ring. The operating space available on the outside is larger, and the assembly efficiency and quality are higher.

[0027] The mirror ring is made of black ASA material, and the outer light-transmitting strip is made of smoked PMMA material. The smoked outer light-transmitting strip has low transmittance to light, which reduces the functional brightness and avoids the risk of glare to the driver and passengers. Compared with the colorless and transparent light-transmitting strip with obvious appearance in the existing technology, the smoked outer light-transmitting strip (light outlet) is integrated with the mirror ring in appearance, as if it is hidden, and the appearance of the rearview mirror is more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The following drawings illustrate some specific embodiments of the present invention in an exemplary and non-limiting manner. The same reference numerals in the drawings represent the same or similar components or parts.

[0029] Figure 1 : An exploded view of the structure of the first embodiment of the present utility model;

[0030] Figure 2 : A cross-sectional view of embodiment 2 of the present utility model.

[0031] The symbols in the figure mean the following:

[0032] 1-mirror ring, 2-external light-transmitting strip, 3-inner light-transmitting strip, 4-light guide, 5-substrate, 6-circuit board, 7-light source, 8-lens, 11-rear annular groove. DETAILED DESCRIPTION

[0033] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention.

[0034] It should be noted that in the description of the present invention, the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are simplified descriptions for the convenience of describing the present invention only, and do not mean that the elements indicated must have a specific direction, be constructed and operated in a specific direction, and should not be construed as limitations on the present invention.

[0035] The utility model integrates a warning component with both non-motor vehicle collision warning function and blind spot monitoring warning function on the rearview mirror of the car. The warning component uses the structural characteristics of the rearview mirror ring to display a ring-shaped flashing light on the outer edge of the rearview mirror ring without affecting the original appearance of the rearview mirror. When the car is parked and someone opens the door, the sensor on the body detects that the surrounding non-motor vehicles or pedestrians may hit the door to be opened, and the mirror ring flashes a light of a specific color to issue a warning to both the occupants and the non-motor vehicle driver, and both parties can take measures to avoid collision; when the car is driving, when there are other road users in the blind spots behind the two sides of the vehicle, it may cause a safety hazard when the vehicle changes lanes, and the mirror ring will flash another color of light to warn the driver. Compared with the prior art BSD that displays the warning pattern in a small area on the mirror surface, the rearview mirror prompt area of ​​the utility model is large, more eye-catching, and does not occupy the mirror surface position. Therefore, the utility model also achieves the purpose of two functions of one set of devices at the same time, saving product costs.

[0036] The technical solution of the present utility model is described below through multiple embodiments.

[0037] Embodiment 1

[0038] like Figure 1 As shown, the automobile rearview mirror of the utility model with integrated multiple warning functions comprises a mirror ring 1, a lens 8 is built in the mirror ring 1, and also comprises the warning assembly of the utility model, the warning assembly comprises an outer light-transmitting strip 2 arranged at the annular groove at the edge of the front wall of the mirror ring 1, and an inner light-transmitting strip 3, a light guide 4 and a substrate 5 sequentially installed at the rear side of the mirror ring 1, the outer light-transmitting strip 2, the inner light-transmitting strip 3 and the light guide 4 are all closed annular strips, and there are also a circuit board 6 fixed on the substrate 5 and a light source 7 installed on the circuit board 6, and the light of the light source 7 is displayed to the outside through the light guide 4, the light-transmitting inner light-transmitting strip 3 and the outer light-transmitting strip 2. After the car is parked, the door opening action issued by the person in the car triggers a group of collision detection sensors arranged on the car to detect whether there are non-motor vehicles or pedestrians on the side and blind spot of the car. If there are, the sensor transmits the detected collision warning data to the controller on the circuit board 6 (not shown in the figure), and the controller sends a collision warning signal according to the collision warning data from the sensor, triggering the light source 7 to emit a flashing light of a specific color to perform a non-motor vehicle collision warning.

[0039] The light guide uses the law of total reflection of light, and the light guide teeth are designed on the light guide to collect the light emitted by the light source and emit it completely through the light guide teeth. The light of the light guide 4 is irregularly propagated through the inner light-transmitting strip 3, which improves the uniformity at multiple angles. Then it is refracted to the outside through the outer light-transmitting strip 2 and can be seen by the driver.

[0040] When a person in the vehicle opens the door when the vehicle is parked, the non-motor vehicle collision warning uses a flashing ring light at the rearview mirror ring as a prompt, which can attract the attention of all people in the vehicle and stop the door opening action in time, especially attracting the attention of non-motor vehicle drivers and pedestrians outside the vehicle at the same time. After the non-motor vehicle driver sees the rearview mirror warning reminder, he avoids or reduces his own speed, increasing the reaction time of each other, providing protection for the life safety of the non-motor vehicle driver, and having great significance for reducing the accidents caused by it. The warning component of the utility model can play a warning role for both parties, realizing two-way warning. Compared with only one party seeing the warning signal, and this party ignoring the signal reminder, the utility model is safer.

[0041] Embodiment 2

[0042] In Embodiment 1, during the driving process of the automobile, another group of sensors arranged on the vehicle body for detecting the blind spots on both sides of the rear of the automobile detect whether there is a vehicle approaching quickly in the blind spot. If so, the sensor transmits the detected blind spot monitoring data to the controller on the circuit board 6. The controller sends a blind spot warning signal based on the blind spot monitoring data from the sensor, triggering the light source 7 to emit a flashing light of another color, thereby realizing the blind spot monitoring and warning function.

[0043] The blind spot monitoring warning signal is changed from being displayed on the mirror surface to being displayed around the mirror circle. The warning range is larger, more eye-catching, and safer driving. The warning signal does not occupy the surface of the mirror and does not affect the function of the rearview mirror itself.

[0044] At the same time, the rearview mirror ring 1 of the utility model emits light of different colors according to different detection signals sent by the sensor when the car is driving or parked, thereby realizing the dual warning functions of blind spot monitoring warning and non-motor vehicle collision warning at the mirror ring 1, reducing one set of warning systems, and having a simple structure and low cost.

[0045] In order to enhance the warning effect and distinguish the two warning signals, when a non-motor vehicle collision warning is performed, the light source 7 emits a red flashing light. When a blind spot monitoring warning is performed, the light source 7 emits an amber flashing light.

[0046] The light source 7 is a dual-core LED lamp, and may also be an OLED or a min LED lamp. One light source can emit light of two colors, which simplifies the structure of the warning component and reduces the cost.

[0047] Embodiment 3

[0048] In Example 1 and Example 2, the controller can be configured to control the flashing frequency of the light source 7 according to the distance between the car and the non-motor vehicle or other vehicles while driving. The closer the distance, the higher the flashing frequency. Warnings are given in different levels to provide more accurate warning information to relevant personnel, and to urge relevant personnel to take emergency avoidance measures in emergency situations to enhance the safety of vehicle use.

[0049] Embodiment 4

[0050] like Figure 2 As shown, the lens ring 1 of the first and second embodiments is made of ASA (impact modified resin), the outer light-transmitting strip 2 is made of PMMA (polymethyl methacrylate), and the lens ring 1 and the outer light-transmitting strip 2 are integrally formed by a two-color injection molding process. Compared with the split injection molding and then connection, the assembly process is omitted, and the outer surface of the integral molding is smoother and more beautiful. The rear annular groove 11 is injection-molded at the corresponding position of the outer light-transmitting strip 2 on the rear side of the lens ring 1. The substrate 5, the light guide 4, and the inner light-transmitting strip 3 can be assembled into one on the outside first, and then fixed in the rear annular groove 11 by the buckle on the substrate 5. Since the space that can be reserved on the lens ring 1 is limited, the space of the rear annular groove 11 is small, the operating space that can be used on the outside is larger, and the assembly efficiency and quality are higher.

[0051] The mirror ring 1 can be made of black ASA material, and the outer light-transmitting strip 2 can be made of smoked PMMA material. The smoked outer light-transmitting strip 2 has low transmittance to light, reduces functional brightness, and avoids the risk of glare to the driver and passengers. Compared with the colorless and transparent light-transmitting strips with obvious appearance in the prior art, the outer light-transmitting strip 2 (light outlet) made of smoked material is integrated with the mirror ring 1 in appearance, as if hidden, and the appearance of the rearview mirror is more beautiful.

[0052] When assembling the substrate 5, the light guide 4 and the inner light-transmitting strip 3, the substrate 5 is placed on the assembly tool, the circuit board 6 is clamped into the cavity of the substrate 5, and then the light guide 4 is placed. The light guide 4 and the positioning holes on the circuit board 6 are positioned and installed, and finally the inner light-transmitting strip 3 is placed. The substrate 5 is made of ABS material (ABS is a thermal engineering plastic copolymerized from three monomers: acrylonitrile, butadiene and styrene), and the inner light-transmitting strip 3 is made of PC (polycarbonate) material with light diffusion properties. In this way, the inner light-transmitting strip 3 and the substrate 5 are connected by ultrasonic welding, and the light guide 4 is fixed between the inner light-transmitting strip 3 and the substrate 5.

[0053] Embodiment 5

[0054] The outer light-transmitting strip 2, the inner light-transmitting strip 3 and the lens ring 1 of the first and second embodiments are integrally formed by three-color injection molding, the light guide 4 is placed between the inner light-transmitting strip 3 and the substrate 5, and the substrate 5 and the inner light-transmitting strip 3 are ultrasonically welded. This method has a higher degree of parts integration. The buckle structure on the substrate 5 connected to the lens ring 1 can be omitted, the structure is simpler, and the assembly efficiency is higher.

[0055] The above implementation modes are only used to illustrate the present invention, but not to limit the present invention. Although the present invention is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent substitutions of the technical solutions of the present invention do not deviate from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A vehicle rearview mirror integrating multiple warning functions, comprising a mirror ring (1), wherein a lens (8) is built into the mirror ring (1), and characterized in that: The vehicle further comprises a warning component, the warning component comprising an outer light-transmitting strip (2) arranged at the annular groove at the edge of the front wall of the lens ring (1), an inner light-transmitting strip (3), a light guide (4) and a substrate (5) which are sequentially mounted on the rear side of the lens ring (1), a circuit board (6) fixed on the substrate (5), a light source (7) and a controller mounted on the circuit board (6), the outer light-transmitting strip (2), the inner light-transmitting strip (3) and the light guide (4) are all closed annular strips, the light of the light source (7) is displayed to the outside through the light guide (4), the light-transmitting inner light-transmitting strip (3) and the outer light-transmitting strip (2), and the controller sends a collision warning signal according to collision warning data sent by a sensor for detecting collision, triggering the light source (7) to emit flashing light of a specific color, thereby carrying out a non-motor vehicle collision warning.

2. The automobile rearview mirror integrating multiple warning functions according to claim 1, characterized in that: The controller sends a blind spot warning signal based on blind spot monitoring data sent by sensors detecting the rear blind spots on both sides of the vehicle, triggering the light source (7) to emit flashing light of another color to perform blind spot monitoring and warning.

3. The automobile rearview mirror integrating multiple warning functions according to claim 2, characterized in that: When a non-motor vehicle collision warning is performed, the light source (7) emits a red flashing light, and when a blind spot monitoring warning is performed, the light source (7) emits an amber flashing light.

4. The automobile rearview mirror integrating multiple warning functions according to claim 3, characterized in that: The light source (7) is a dual-core LED lamp.

5. The automobile rearview mirror integrating multiple warning functions according to claim 2, characterized in that: The controller controls the flashing frequency of the light source (7) according to the distance between the automobile and the non-motor vehicle or other vehicles while driving; the closer the distance, the higher the flashing frequency, and warnings are given in different levels.

6. The automobile rearview mirror integrating multiple warning functions according to claim 1 or 2, characterized in that: The mirror ring (1) is made of ASA material, and the outer light-transmitting strip (2) is made of PMMA material. The mirror ring (1) and the outer light-transmitting strip (2) are integrally formed by a two-color injection molding process. A rear annular groove (11) is injection molded at a position corresponding to the outer light-transmitting strip (2) on the rear side of the mirror ring (1). The substrate (5), the light guide (4), and the inner light-transmitting strip (3) are assembled into one piece on the outside and then fixed in the rear annular groove (11) by means of a buckle on the substrate (5).

7. The automobile rearview mirror integrating multiple warning functions according to claim 6, characterized in that: The mirror ring (1) is made of black ASA material, and the outer light-transmitting strip (2) is made of smoked PMMA material.

8. The automobile rearview mirror integrating multiple warning functions according to claim 7, characterized in that: When the substrate (5), the light guide (4) and the inner light-transmitting strip (3) are assembled, the substrate (5) is placed on an assembly tool, the circuit board (6) is snapped into the cavity of the substrate (5), and then the light guide (4) is placed. The light guide (4) is positioned and installed with the positioning holes on the circuit board (6), and finally the inner light-transmitting strip (3) is placed. The substrate (5) is made of ABS material, and the inner light-transmitting strip (3) is made of PC material with light diffusion properties. The inner light-transmitting strip (3) and the substrate (5) are connected by ultrasonic welding, and the light guide (4) is fixed between the inner light-transmitting strip (3) and the substrate (5).

9. The automobile rearview mirror integrating multiple warning functions according to claim 1 or 2, characterized in that: The outer light-transmitting strip (2), the inner light-transmitting strip (3), and the mirror ring (1) are integrally formed by three-color injection molding, the light guide (4) is arranged between the inner light-transmitting strip (3) and the substrate (5), and the substrate (5) and the inner light-transmitting strip (3) are ultrasonically welded.

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