CN216886462U

CN216886462U - Projection warning device and system thereof, and vehicle

Info

Publication number: CN216886462U
Application number: CN202220538876.1U
Authority: CN
Inventors: 张鸿儒; 张彦福; 赵云; 马鸿超; 俞志华
Original assignee: Apollo Intelligent Technology Beijing Co Ltd
Current assignee: Apollo Intelligent Technology Beijing Co Ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-07-05
Anticipated expiration: 2032-03-11

Abstract

The utility model relates to a projection warning device and system, vehicle thereof relates to projection equipment technical field. The projection warning device includes: the projector comprises a projector body and a fixed seat; the projector body comprises a shell and at least one projection component, the projection component is arranged in the shell, and the projection component is used for transmitting images in any shape outwards through the shell; the top of the fixed seat is rotatably connected to the bottom of the shell, and the bottom of the fixed seat is used for being adsorbed on a vehicle; wherein the projector body can adjust the pitch angle in at least one azimuth vertical plane. The projection warning device is convenient to install, can ensure the safety of drivers and passengers, and has the characteristics of small occupied space, various projection contents and adjustable projection distance.

Description

Projection warning device and system thereof, and vehicle

Technical Field

The disclosure relates to the technical field of projection equipment, in particular to a projection warning device, a system thereof and a vehicle.

Background

The warning board is a conventional emergency assembly of a vehicle, is generally in a triangular shape in appearance, and is also called as a triangular warning board. When the vehicle owner encounters an emergency on the road, the light reflecting performance of the warning board is utilized to remind other vehicles of avoiding, so that secondary accidents are avoided.

In actual operation, under the condition that the vehicle is in a broken down or a traffic accident, the vehicle owner or the passenger can erect the warning board carried with the vehicle on the road surface near the rear of the vehicle to warn the coming vehicle at the rear and reduce the rear-end collision risk. For example, on a common road, a warning board can be placed 50 meters behind a vehicle in the daytime and 150 meters behind the vehicle at night; on the expressway, the warning board can be placed 150 meters behind the vehicle in the daytime, and the warning board can be placed 250 meters behind the vehicle at night.

However, when the traffic flow is large, for example, when a warning board is placed on an expressway or an ordinary road with a high vehicle speed, the vehicle is likely to cause collision injury to people.

SUMMERY OF THE UTILITY MODEL

The utility model provides a projection warning device and system, vehicle thereof, projection warning device installation is convenient, can guarantee driver and crew's safety, and has occupation space concurrently and little, the various, the projection distance adjustable characteristics of projection content.

In a first aspect, the present disclosure provides a projection warning device, including: the projector comprises a projector body and a fixed seat;

the projector body comprises a shell and at least one projection assembly, the projection assembly is arranged in the shell, and the projection assembly is used for transmitting images in any shapes outwards through the shell;

the top of the fixed seat is rotatably connected to the bottom of the shell, and the bottom of the fixed seat is used for being adsorbed on a vehicle; wherein the projector body is adjustable in pitch in at least one azimuthal vertical plane.

The utility model provides a projection warning device connects the fixing base through the bottom at the projector body, and the fixing base can adsorb on the vehicle, and projection warning device's is small, and occupation space is little, and it is convenient to install and dismantle, can guarantee driver and crew's safety. The projection subassembly of projector body can emit the image of arbitrary shape, and the projection image is nimble various to, the projector body rotates with the fixing base to be connected, and the angle of pitch of adjustable projector body changes the printing opacity portion that corresponds with the projection subassembly on the casing and for the gradient on road surface, thereby, the distance between adjustable projection image and the vehicle, with the projection demand under the different road conditions of satisfying, the reliability is high.

In one possible embodiment, the projector body is adjustable in pitch in a vertical plane in each orientation.

In a possible implementation manner, the fixing seat comprises a base, and the base is connected with the projector body through a spherical connecting structure.

In one possible embodiment, the spherical connecting structure comprises a spherical groove and a spherical head part, and the spherical head part is clamped in the spherical groove and rotates in the spherical groove;

one of the bottom of the shell and the top of the base is provided with a spherical groove, and the other is provided with a spherical head.

In one possible embodiment, the spherical groove is provided at the bottom of the housing and the ball head is provided at the top of the base.

In one possible embodiment, the fixing base comprises a connecting base and a base, the connecting base being connected between the bottom of the housing and the base;

wherein, the shell and the connecting seat can rotate relatively, and the connecting seat and the base can rotate relatively.

In a possible implementation mode, a mounting lug extends out of the bottom of the shell and extends into a mounting groove formed in the top of the connecting seat;

the both sides surface of installation ear has all stretched out the guiding axle, and the both sides cell wall of mounting groove all is equipped with the arc wall, and the guiding axle is worn to establish and is slided along the arc wall in the arc wall.

In a possible implementation mode, one end of the connecting seat, which faces the base, is provided with a circular step groove, and the top end of the base extends into the step groove and rotates in the step groove;

the top end of the base is provided with a skirt edge extending towards the peripheral side, and the skirt edge is abutted against the step part of the stepped groove.

In one possible embodiment, the base is magnetically attracted to the vehicle, or the base is vacuum attracted to the vehicle.

In one possible embodiment, the projection assembly is attached to an inner wall of the housing, the housing has a light-transmitting portion, and the projection assembly is disposed corresponding to the light-transmitting portion.

In one possible embodiment, the projection assembly comprises a plurality of projection assemblies, and the plurality of projection assemblies are arranged on different positions of the inner wall of the shell along the circumferential direction of the shell.

In one possible embodiment, the projection assembly includes a circuit board and a plurality of point light sources arranged in an array on a side surface of the circuit board facing the light-transmitting portion.

In a possible embodiment, the projector body further comprises a power line, one end of the power line is connected to the projection assembly, and the other end of the power line is used for being connected with a power supply.

In one possible embodiment, the projector body further includes a battery disposed within the housing, and the battery is electrically connected to the power cord.

In a second aspect, the present disclosure provides a projection warning system, including an application module and the projection warning device as described above;

the application program module is used for being installed on the mobile terminal, and the mobile terminal is in communication connection with the projection warning device.

The projection warning system comprises an application program module and a projection warning device, wherein the application program module can be installed on a vehicle or a mobile phone and other mobile terminals, and any image signal can be transmitted to the projection warning device through wireless communication between the mobile terminals and the projection warning device. The fixing base is connected to the bottom of the projector body through the projection warning device, the fixing base can be adsorbed on a vehicle, the projection warning device is small in size, small in occupied space, convenient to install and disassemble and capable of guaranteeing safety of drivers and passengers. The projection subassembly of projector body can launch from the arbitrary image that the application received, and the projection image is nimble various to, the projector body rotates with the fixing base to be connected, and the pitch angle of adjustable projector body changes the slope of the printing opacity portion that corresponds with the projection subassembly on the casing for the road surface, thereby, the distance between adjustable projection image and the vehicle, in order to satisfy the projection demand under the different road conditions, the reliability is high.

In a third aspect, the present disclosure provides a vehicle comprising a projected warning system as described above.

The vehicle comprises a projection warning system, wherein the projection warning system comprises an application program and a projection warning device, the application program can be installed on a vehicle machine or a mobile phone and other mobile terminals, and any image signal can be transmitted to the projection warning device through wireless communication between the mobile terminals and the projection warning device. The fixing base is connected to the bottom of the projector body through the projection warning device, the fixing base can be adsorbed on a vehicle, the projection warning device is small in size, small in occupied space, convenient to install and disassemble and capable of guaranteeing safety of drivers and passengers. The projection subassembly of projector body can launch from the arbitrary image that the application received, and the projection image is nimble various to, the projector body rotates with the fixing base to be connected, and the pitch angle of adjustable projector body changes the slope of the printing opacity portion that corresponds with the projection subassembly on the casing for the road surface, thereby, the distance between adjustable projection image and the vehicle, in order to satisfy the projection demand under the different road conditions, the reliability is high.

It should be understood that what is described in this summary section is not intended to limit key or critical features of the embodiments of the disclosure, nor is it intended to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the following description.

Drawings

The above and other features, advantages and aspects of various embodiments of the present disclosure will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, like or similar reference characters designate like or similar elements, and wherein:

fig. 1 is a schematic structural diagram of a projection warning device according to a first embodiment of the disclosure;

fig. 2 is a connecting structure diagram of the projector body and the fixing base according to the first embodiment of the disclosure;

fig. 3 is a schematic structural view of the projection warning device in fig. 1 with another fixing base;

fig. 4 is another connection structure diagram of the projector body and the fixing base according to the second embodiment of the disclosure;

fig. 5 is a schematic view of a projection warning system according to a third embodiment of the disclosure.

Description of reference numerals:

1-projection warning system;

100-projection warning device; 200-APP;

110-a projector body; 120-a fixed seat; 101-a spherical structure;

111-a housing; 112-a projection assembly; 113-power supply line; 114-a battery; 121-a base; 122-a connecting seat; 123-magnetic sheet;

1111-spherical groove; 1112-mounting ears; 1211-ball head; 1212-skirt border; 1221-an arc-shaped slot; 1222-a step groove;

1112 a-a guide shaft; 1222 a-a step.

Detailed Description

The existing vehicle basically carries the warning identification along with the vehicle, so that the warning identification is arranged outside the vehicle under the condition that the vehicle is anchored or has a traffic accident, the rear vehicle is warned, and the rear-end collision risk is reduced.

The conventional warning signs equipped on vehicles are warning signs, which are also called triangular warning signs because the warning signs are generally triangular in appearance. When the vehicle has an emergency demand, a driver or passengers need to get off and walk for a certain distance, and the warning board is erected on the road surface near the rear part of the vehicle. By the mode, under the conditions of large traffic flow and high speed, the warning board is placed when the driver gets off the vehicle, and the risk that the driver and the passengers are collided by the rear vehicle exists.

Moreover, the warning board does not emit light normally, and is reminded by means of the reflection performance, so that the warning performance is weak, and potential safety hazards exist. In addition, if the position where the warning board is erected is too close to the accident vehicle, secondary accidents are easily caused, and more serious damage can be caused.

Therefore, at present, projection warning devices have been developed gradually, and when an emergency demand exists, the projection warning devices are placed outside the vehicle body, and images are projected on the road surface behind the vehicle by emitting light through the projection warning devices so as to warn the rear vehicle. However, the existing projection warning device needs a large installation space, is inconvenient to install, and has a single projection image.

To this end, the embodiment of the present disclosure provides a projection warning device, a system thereof, and a vehicle, wherein the projection warning device is connected to a fixing base by rotating the bottom of a projector body, so that the projection warning device can be conveniently installed on a vehicle body, the projection warning device occupies a small space, a projection assembly arranged in the projector body can project any image, the projection content is rich and diverse, and the pitch angle of the projector body can be adjusted by rotating the projector body, so that the projection distance can be adjusted, the device flexibility is high, and the safety is good.

Exemplary embodiments of the present disclosure are described below with reference to the accompanying drawings, in which various details of the embodiments of the disclosure are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

Example one

The projection warning device provided by the embodiment can be carried along with a Vehicle, when the Vehicle is in a condition of being broken down or a traffic accident, the projection warning device is arranged outside the Vehicle body of the Vehicle, taking passenger Vehicles such as cars, SUVs (Sport Utility Vehicles) and MPVs (multi-Purpose Vehicles) as examples, the projection warning device can be arranged on the roof, the trunk lid or the rear bumper of the Vehicle, and projects images on the road surface behind the Vehicle through the projection warning device so as to warn the rear Vehicle to avoid the occurrence of a secondary accident.

Fig. 1 is a schematic structural diagram of a projection warning device according to an embodiment of the present disclosure. Referring to fig. 1, the projection warning device 100 of the present embodiment includes a projector body 110 and a fixing base 120, the projector body 110 is used for emitting light outwards, the light is projected on a road surface to form an image to warn a vehicle behind the vehicle to avoid the collision, the fixing base 120 is connected to a bottom of the projector body 110, and the fixing base 120 is capable of being attached to a vehicle body, for example, a vehicle roof, a trunk lid, or a rear bumper, so as to mount the projection warning device 100 on the vehicle body.

The projector body 110 includes a housing 111, a projection assembly 112 and a power cord 113, and the fixing base 120 is connected to the bottom of the housing 111. The projection assembly 112 is disposed in the housing 111, the projection assembly 112 is used for emitting light, and the light emitted by the projection assembly 112 penetrates the housing 111 to irradiate on a road surface behind the vehicle to form a projection image. The power cord 113 is connected and fixed on the casing 111, and one end of the power cord 113 is connected with the projection assembly 112 in stretching into the casing 111 to provide current for the projection assembly 112, so that the projection assembly 112 emits light, and the other end of the power cord 113 is used for being connected with a power supply, and supplies power to the projection warning device 100 through the power supply.

For example, the power source may be a vehicle power source, and the power line 113 of the projection warning device 100 is connected to the vehicle power source to supply power to the projection warning device 100.

In addition, as shown in fig. 1, in order to improve the reliability of the projection warning apparatus 100, a battery 114 is further disposed in the housing 111 of the projector main body 110, the battery 114 is electrically connected to a power line 113, and when the power line 113 is connected to a power source (for example, a vehicle-mounted power source), the battery 114 can be charged. Besides the situation that the projection module 112 is directly powered by the power supply, the battery 114 can be discharged to supply power to the projection module 112, so that the projection module 112 emits light and projects images.

When the vehicle fails to supply power to the projection warning apparatus 100, for example, when the vehicle has a serious failure and the vehicle-mounted power supply fails to supply power, the battery 114 discharges power to supply power to the projection unit 112, and image projection can still be achieved.

The projection assembly 112 may be attached to an inner wall of the housing 111, a light-transmitting portion (not shown in the figure) is disposed on a portion of the housing 111 corresponding to the projection assembly 112, the projection assembly 112 faces the light-transmitting portion, and light emitted by the projection assembly 112 is irradiated outwards through the light-transmitting portion. For example, the housing 111 may be provided with a light-transmitting opening, the light-transmitting opening is covered with a high-transparency protective cover, for example, a glass cover or a plastic cover, the protective cover covering the light-transmitting opening forms a light-transmitting portion, and light emitted by the projection assembly 112 passes through the protective cover and irradiates a road surface behind the vehicle to form a projection image.

In this embodiment, the projection component 112 may implement projection of any image. In practical applications, the projection warning device 100 may be applied to emergency scenes such as a vehicle breakdown or a traffic accident, as shown in fig. 1, at this time, the projection component 112 may project a warning sign image capable of playing a warning role, where the warning sign image is, for example, a triangular image marked with an exclamation mark shown in fig. 1, or the warning sign image may also be a circle marked with an exclamation mark, a maintenance sign mark, or another image of an engine fault marker light.

In other application scenes such as parking and rest of the vehicle, the projection component 112 may also project other images besides the warning sign image, for example, the projection component 112 may project any other images such as smiling face expression, flower, number, and text, and the projected image may be enjoyed by the person. In addition, the projection image can be switched uninterruptedly by controlling the projection assembly 112, so that the effect of dynamic display is achieved, and the interestingness and entertainment of projection can be improved.

In particular, the projection assembly 112 may include a circuit board (not shown) and a point light source (not shown). The Circuit Board may be a Printed Circuit Board (PCB) or a Flexible Printed Circuit Board (FPC), and the Circuit Board may be fixed on the inner wall of the housing 111 by bonding or welding, for example, a circle of adhesive layer is disposed on an area of the Circuit Board near the edge, the periphery of the Circuit Board is bonded on the peripheral area of the light-transmitting opening of the housing 111, and the Circuit Board is exposed in the light-transmitting opening.

The point light source is disposed on a side surface of the circuit board facing the light transmission portion, that is, the point light source is disposed on a side surface of the circuit board facing the outside of the housing 111, the point light source faces the outside of the housing 111, and light emitted from the point light source is emitted through the protective cover. The point light sources may be arranged in an array on the circuit board, and different images may be projected by controlling the number and positions of the point light sources emitting light, so as to realize projection of any image by the projection assembly 112.

The point Light source may be a laser Light source or a Light-Emitting Diode (LED) Light source, for example. Because, the vehicle can appear under the dim circumstances such as natural light dim or surrounding environment light dim in the tunnel night, emergency situation such as the accident appears, and at this moment, the light that needs projection warning device 100 to send has sufficient luminance, guarantees that the projection image is obvious, striking, ensures to play effectual warning effect, therefore, can select luminance height, colour purity and can directional luminous laser as the pointolite.

In the present embodiment, only one projection unit 112 may be provided in the housing 111 of the projector main body 110, or a plurality of projection units 112 may be provided in the housing 111. Referring to fig. 1, taking the case 111 of the projector body 110 as a cube or a rectangular parallelepiped as an example, among the wall surfaces of the case 111, the fixing base 120 is connected to a side where the bottom wall surface is located, and the bottom wall surface mainly faces the vehicle body, and the projection module 112 may not be provided, and the top wall surface of the case 111 faces the sky, so that the projection module 112 does not need to be provided, and the projection module 112 may be provided on the inner wall surfaces of four sides of the case 111 in the circumferential direction, except for the bottom wall surface and the top wall surface.

In the case where only one projection unit 112 is provided in the housing 111, the projection unit 112 may be provided on the inner wall surface of one of the four circumferential sides of the housing 111, and referring to fig. 1, when the projection warning device 100 is mounted outside the vehicle body, the side on which the projection unit 112 is mounted, that is, the side surface of the housing 111 having the light-transmitting portion, may be directed toward the rear of the vehicle, so that the projection unit 112 can project an image onto a road surface behind the vehicle.

In the case where a plurality of projection units 112 are provided in the casing 111, the projection units 112 may be provided on inner wall surfaces of a plurality of circumferential four sides of the casing 111, and the projection units 112 may project images onto road surfaces on different sides of the vehicle. Taking the case where the projection units 112 are provided on the inner wall surfaces of the three circumferential sides of the casing 111, the projection unit 112 facing the rear of the vehicle may be mainly used for projecting warning sign images, and the projection units 112 facing the left and right sides of the vehicle may be used for projecting images with ornamental or entertaining effects. Alternatively, when the vehicle is in a non-emergency state such as a parking rest, the plurality of projection units 112 respectively provided on a plurality of sides of the housing 111 in the circumferential direction may project an image having an ornamental or entertaining effect.

The shape of the housing 111 of the projector main body 110 is not limited to a square or rectangular parallelepiped, and the housing 111 may have another shape such as a spherical shape, an ellipsoidal shape, a pentagonal shape, an octahedral shape, or an inverted triangular pyramid shape, and one or a plurality of light transmitting portions may be provided in a wall surface area corresponding to a side of the vehicle of the housing 111, or a plurality of light transmitting portions may be provided at intervals in the circumferential direction, and the projection unit 112 may be provided corresponding to the light transmitting portions, so that the projection unit 112 can project an image on a road surface behind the vehicle or on a road surface on a side of the vehicle.

Taking the case 111 of the projector body 110 as an example, the wall surface of the case 111 is a spherical surface, which has the function of diverging light outward. For example, the transparent protective cover is designed to have a thick middle part and a thin edge, so that the light emitted from the projection module 112 is converged on the road surface after passing through the protective cover, thereby ensuring that the road surface can display a clear image with sufficient brightness.

Because the image of projection on the road surface behind the vehicle usually has certain distance with the vehicle to, under different road conditions such as daytime or night, slow ordinary road of speed of a motor vehicle or fast highway of speed of a motor vehicle, need have different distances between projection image and the vehicle, in order to guarantee that the projection image can play effectual warning effect, reserve sufficient reaction time for the car that comes in the rear. Therefore, in this embodiment, the projector body 110 can adjust the distance between the projected image and the vehicle within a certain range, so as to meet the projection requirements under different road conditions.

In order to adjust the distance between the projected image and the vehicle within a certain range by the projector body 110, that is, to make the projector body 110 have a certain range of projection distance, referring to fig. 1, in the present embodiment, the housing 111 of the projector body 110 is rotatably connected to the fixing base 120, and the bottom of the housing 111 is rotatably connected to the top of the fixing base 120. Thus, when the projection warning device 100 is attached to the outside of the vehicle body through the fixing seat 120, the pitch angle of the projector body 110 can be adjusted by rotating the projector body 110, and the inclination angle of the light-transmitting portion on the casing 111 relative to the road surface is changed, so that the exit angle of light emitted by the projection assembly 112 mounted on the inner side of the light-transmitting portion is adjusted, and the distance between the image projected on the road surface by the projection assembly 112 and the vehicle is adjusted.

In addition, in addition to adjusting the pitch angle of the projector body 110, the distance between the projected image and the vehicle may be changed by adjusting the light emission angle of the projection assembly 112 itself. At this time, the projection module 112 may be mounted on the inner wall of the housing 111 through a bracket, and the projection module 112 may be driven to perform angular deflection by a micro motor or the like disposed in the housing 111, so as to change the light-emitting angle of the projection module 112. Or, a lens may be additionally disposed on a side where the point light source of the projection assembly 112 is located, and the angle of the emergent light of the projection assembly 112 may be changed by adjusting the pitch angle of the lens.

The following description will be given mainly in detail on the manner of adjusting the distance between the projected image and the vehicle by changing the pitch angle of the projector body 110.

Since it is necessary to change the inclination angle of the light transmission portion of the casing 111 of the projector body 110 facing the rear of the vehicle with respect to the road surface in order to adjust the distance between the projected image of the road surface located at the rear of the vehicle and the vehicle, it is necessary to change the pitch angle of the projector body 110 in the front-rear direction of the vehicle at least. In this regard, the projector body 110 is adjustable in pitch angle in at least one oriented vertical plane, which is a concept of a vertical plane being a plane perpendicular to a horizontal plane as opposed to a horizontal plane.

When the projector body 110 is adjustable in the pitch angle only in one vertical plane, the vertical plane may be a vertical plane corresponding to the front-rear direction of the vehicle when the projection warning device 100 is installed, and the projector body 110 has a projection assembly 112 facing the rear of the vehicle. In this manner, by changing the pitch angle of the projector body 110 in the vertical plane, the inclination of the light-transmitting portion facing the vehicle rear side on the housing 111 with respect to the road surface can be changed, thereby adjusting the projection distance of the projection unit 112 facing the vehicle rear side.

For example, the fixing base 120 and the projector body 110 may be connected by a rotating shaft (not shown in the drawings), and taking the case that the housing 111 shown in fig. 1 has a projection assembly 112, the rotating shaft may be arranged parallel to a side wall surface of the housing 111 corresponding to the projection assembly 112, and when the side wall surface of the housing 111 corresponding to the projection assembly 112 faces the rear of the vehicle, the rotating shaft may extend along the width direction of the vehicle, so that when the projector body 110 rotates by the rotating shaft, the pitch angle of the projector body in the front-rear direction of the vehicle changes.

In order to make the rotation manner of the projector body 110 more flexible, in this embodiment, the pitch angle of the projector body 110 can be adjusted in the vertical plane in each orientation, that is, the projector body 110 can rotate in any orientation relative to the fixing base 120. In this way, there is no limitation on the position of the projection unit 112 on the inner wall surface of the housing 111, and there is no limitation on the mounting direction when the projection warning device 100 is mounted outside the vehicle body, which facilitates the mounting of the projection warning device 100.

As for the manner that the projector body 110 can adjust the pitch angle in the vertical plane in each orientation, and the projector body 110 can rotate in any orientation relative to the fixing base 120, referring to fig. 1, as an embodiment, the fixing base 120 may be an integral structure, for example, the fixing base 120 may adopt a structure only including the base 121, and the top of the base 121 is connected with the bottom of the housing 111 of the projector body 110 through the spherical structure 101.

Fig. 2 is a connection structure diagram of a projector body and a fixing base according to an embodiment of the disclosure. Referring to fig. 2, for the connection of the spherical structure 101 between the base 121 and the housing 111 of the projector body 110, specifically, the bottom of the housing 111 may be provided with a spherical groove 1111, the top of the base 121 may be provided with a ball 1211, the ball 1211 is, for example, integrally formed on the top of the base 121, the ball 1211 is disposed opposite to the spherical groove 1111, the base 121 and the projector body 110 are assembled together by snapping the ball 1211 into the spherical groove 1111, and the ball 1211 on the top of the base 121 may relatively rotate in the spherical groove 1111 on the bottom of the housing 111, so as to realize the rotation of the projector body 110 relative to the fixing base 120 in any orientation.

Alternatively, the spherical groove 1111 may be opened at the top of the base 121, the bottom of the housing 111 may be provided with a ball 1211, the ball 1211 at the bottom of the housing 111 is snapped into the spherical groove 1111 at the top of the base 121, the ball 1211 of the housing 111 rotates in the spherical groove 1111 of the base 121, and similarly, the projector body 110 can rotate in any direction relative to the fixing base 120.

In order to insert the ball 1211 into the ball groove 1111 and to limit the ball 1211 from coming out by wrapping the ball groove 1111, as shown in fig. 2, in practical applications, one of the housing 111 and the base 121 having the ball groove 1111 may be provided in a separate structure, the ball groove 1111 may be in a separate state where two halves are separated before the projector body 110 and the base 121 are assembled, and after the other of the ball 1211 is inserted into a partial structure of the ball groove 1111, the other part of the ball groove 1111 is completely engaged to form a structure in which the ball groove 1111 wraps the ball 1211 completely.

For the installation of the integral fixing seat 120 only including the base 121 outside the vehicle body, referring to fig. 1, a layer of magnetic sheet 123 may be attached to the bottom of the base 121, and since the roof, the trunk lid, and other parts of the vehicle are all made of metal plate structures, the magnetic sheet 123 at the bottom of the base 121 may be magnetically adsorbed to the roof, the trunk lid, and other parts, so as to magnetically adsorb the projection warning device 100 to the vehicle body.

Alternatively, the base 121 is an integral structure, the base 121 is a magnetic base 121 as a whole, and the projection warning device 100 is magnetically attached to the vehicle body by the base 121.

Fig. 3 is a schematic structural diagram of the projection warning device in fig. 1 having another fixing seat, and referring to fig. 3, in addition to the way that the base 121 is magnetically attached to the metal plate structure of the vehicle body, the base 121 may also be attached to the vehicle body in a vacuum absorption way, at this time, the whole base 121 may be configured to be a suction cup structure, and in combination with fig. 2, in the case that the top of the base 121 has a ball portion 1211, a spherical protrusion may be formed on the top end of the suction cup type base 121 as the ball portion 1211.

Through setting up base 121 to the sucking disc structure, base 121 relies on the vacuum effect to adsorb on the automobile body, and base 121 except can adsorbing on the metal sheet structure, base 121 can also adsorb parts such as the rear bumper of plastics material or skylight of roof.

The projection warning device 100 provided by the embodiment is characterized in that the fixing seat 120 is connected to the bottom of the projector body 110, the fixing seat 120 can be adsorbed on a vehicle, the projection warning device 100 is small in size, small in occupied space and convenient to mount and dismount, and safety of drivers and passengers can be guaranteed. The projection assembly 112 of the projector body 110 can emit images in any shapes, the projected images are flexible and various, the projector body 110 is rotatably connected with the fixing seat 120, the pitch angle of the projector body 110 can be adjusted, and the inclination of the light transmission part corresponding to the projection assembly 112 on the shell 111 relative to the road surface is changed, so that the distance between the projected images and the vehicle can be adjusted, the projection requirements under different road conditions can be met, and the reliability is high.

Example two

In the case that the projector body 110 can rotate relative to the fixing base 120 in any direction, in addition to the fixing base 120 being an integral structure and the fixing base 120 being connected to the housing 111 of the projector body 110 by the spherical structure 101, as an alternative to the first embodiment, the present embodiment provides another projection warning device 100, and the connection structure between the fixing base 120 and the housing 111 of the projection warning device 100 is different from the first embodiment, and will be described in detail below.

Fig. 4 is another connection structure diagram of the projector body and the fixing base according to the second embodiment of the disclosure. Referring to fig. 4, in this embodiment, the fixing base 120 may include a connecting base 122 and a base 121, the connecting base 122 is connected between the bottom of the housing 111 and the base 121, the housing 111 and the connecting base 122 may rotate relatively, the connecting base 122 and the base 121 may also rotate relatively, and the projector body 110 may rotate in any direction relative to the base 121 through the relative rotation between the three.

As shown in fig. 4, as an embodiment, the housing 111 may implement the change of the pitch angle in a vertical plane with respect to the connection seat 122, and the connection seat 122 may rotate in a horizontal plane with respect to the base 121, so that the change of the pitch angle of the housing 111 is superimposed on the rotation in the horizontal plane, and the projector body 110 may implement the rotation in any direction with respect to the base 121.

Specifically, the bottom of the housing 111 may extend out of the mounting ear 1112, the top of the connecting seat 122 may be provided with a mounting groove (not shown in the figure), a notch of the mounting groove faces upward to the bottom of the housing 111, and the mounting ear 1112 extends into the mounting groove. The both sides cell wall of mounting groove is vertical to be extended, and both sides cell wall all is provided with arc 1221, and the both sides surface of installation ear 1112 all stretches out guide shaft 1112a, and the guide shaft 1112a of both sides is worn to establish respectively in the arc 1221 of seting up on the cell wall of mounting groove both sides. The change of the pitch angle of the projector body 110 is achieved by the guide shaft 1112a sliding along the arc-shaped groove 1221.

Also, a bottom end of connecting holder 122, that is, an end of connecting holder 122 facing base 121 may be provided with an annular step groove 1222, step groove 1222 is a narrow groove having a larger diameter near a groove bottom and a smaller diameter near a notch, and step 1222a of step groove 1222 faces the groove bottom. The top end of seat 121 may have a skirt 1212 extending toward the peripheral side, the top end of seat 121 extends into stepped groove 1222, and skirt 1212 at the top end of seat 121 extends into the space formed between step 1222a and the bottom of the groove 1222.

Step groove 1222 catches the top end of base 121 in step groove 1222 through the abutting action of step 1222a against skirt 1212 at the top end of base 121, so as to connect base 121 and connecting seat 122, and prevent the top end of base 121 from falling out. And, the top end of base 121 can also rotate in stepped groove 1222, so as to realize that connecting seat 122 rotates in the horizontal plane relative to base 121.

Alternatively, the bottom end of connecting seat 122 may be configured to have a skirt 1212 extending toward the periphery, and a circular step groove 1222 is opened at the top end of base 121, the bottom end of connecting seat 122 extends into step groove 1222 at the top end of base 121 and can rotate in step groove 1222, and by the abutting action of step 1222a of step groove 1222 on skirt 1212 at the bottom end of connecting seat 122, base 121 is prevented from being removed.

For example, the bottom end of the connecting seat 122 is provided with the step groove 1222, the top end of the base 121 is provided with the skirt 1212, the connecting seat 122 may be configured as a split structure, when the connecting seat 122 and the base 121 are assembled, the skirt 1212 of the base 121 is firstly clamped into a partial structure of the step groove 1222 of half of the connecting seat 122, and then the other half of the connecting seat 122 is completely clamped, so that the skirt 1212 of the base 121 is clamped into the complete step groove 1222.

As an alternative embodiment, the bottom of housing 111 and the top end of connecting section 122 may rotate relative to each other in a horizontal plane, and connecting section 122 may change pitch angle in a vertical plane relative to base 121, as opposed to housing 111 changing pitch angle relative to connecting section 122 and connecting section 122 rotating in a horizontal plane relative to base 121. For example, one of the bottom of the housing 111 and the top end of the connecting seat 122 is provided with a circular step groove 1222, and the other is provided with a skirt 1212, and the skirt 1212 extends into the step groove 1222 and rotates along the step groove 1222; moreover, the bottom of the connecting seat 122 may extend out of the mounting ear 1112, the mounting ear 1112 extends into the mounting groove at the top end of the base 121, and the guide shafts 1112a at two sides of the mounting ear 1112 respectively penetrate through the arc-shaped grooves 1221 formed in the two side groove walls of the mounting groove at the top of the base 121.

For the installation of the base 121 on the vehicle body, similar to the first embodiment, the base 121 may be attached to the vehicle body by a magnetic attraction manner, for example, a layer of magnetic sheet may be attached to the bottom surface of the base 121, or the base 121 may be a magnetic base 121 as a whole; alternatively, the base 121 may be attached to the vehicle body by vacuum suction, for example, the base 121 may be configured as a suction cup structure.

Other structures, functions and working principles of the projection warning device 100 provided in this embodiment are similar to those of the embodiment, and are not described herein again.

EXAMPLE III

Fig. 5 is a schematic view of a projection warning system according to a third embodiment of the disclosure. Referring to fig. 5, the present embodiment provides a projection warning system 1, where the projection warning system 1 includes an Application module (APP) and the projection warning apparatus 100 described in the first embodiment or the second embodiment.

The APP200 is installed in the mobile terminal, is stored in a memory of the mobile terminal in the form of program codes, and is called by a certain processing element of the mobile terminal and executes the functions of the APP 200. For example, the APP200 may be installed on a car machine of a vehicle or a mobile phone of a car owner, and the APP200 may be installed on both the car machine and the mobile phone. The mobile terminal installed with the APP200 can communicate with the projection warning device 100 through the wireless transmission mode, transmit the signal of the projection image to the projection warning device 100 through the APP200, and the projection warning device 100 controls the display mode of the point light source arranged in the array of the projection component 112 according to the received signal, and projects the corresponding image to the road surface.

The APP200 may have a picture library, where some commonly used pictures are stored in the picture library, for example, some conventional warning indication images are stored in the picture library, or some other images such as smiling face expressions, flowers, numbers, and characters may also be stored in the picture library, and a user may directly call the images in the picture library as projection images. In addition, the APP200 may further support user-defined editing and drawing of images, so as to transmit the images that are customized edited and drawn by the user to the projection warning apparatus 100, so that the projection warning apparatus 100 can implement personalized projection of any images.

In addition, the detailed structure, function and operation principle of the projection warning device 100 are described in detail in the first embodiment and the second embodiment, and are not described herein again.

The embodiment further provides a vehicle, the vehicle includes the above projection warning system 1, the vehicle may include passenger cars such as cars, SUVs, MPVs, off-road vehicles, and the like, and may further include passenger cars, trucks, semi-trailers, and the like, and the embodiment is not particularly limited.

Taking a passenger car as an example, the APP200 can be installed on a car machine of the car or a mobile phone of a car owner, and the projection warning device 100 can be carried in a trunk on the car. When meeting emergency situations such as vehicle breakdown or traffic accidents, the projection warning device 100 is placed outside the vehicle body to project an image on the road surface behind the vehicle so as to warn the coming vehicle behind and avoid secondary accidents. Alternatively, the projection warning device 100 may project an image on the road surface to play a role of viewing and entertaining in other situations such as a parking or a rest.

The above detailed description should not be construed as limiting the scope of the disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. A projected warning device, comprising: the projector comprises a projector body and a fixed seat;

2. The projected warning device of claim 1, wherein the projector body is adjustable in pitch in a vertical plane in each orientation.

3. The projection warning device of claim 2, wherein the fixing base comprises a base, and the base is connected with the projector body through a spherical connecting structure.

4. The projected warning device of claim 3, wherein the spherical connecting structure comprises a spherical groove and a spherical head, and the spherical head is clamped in the spherical groove and rotates in the spherical groove;

one of the bottom of the housing and the top of the base is provided with the spherical groove, and the other is provided with the ball head.

5. The projected warning device of claim 4, wherein the spherical groove is disposed at a bottom of the housing and the ball head is disposed at a top of the base.

6. The projected warning device of claim 2, wherein the fixing seat comprises a connecting seat and a base, the connecting seat is connected between the bottom of the housing and the base;

the shell and the connecting seat can rotate relatively, and the connecting seat and the base can rotate relatively.

7. The projection warning device of claim 6, wherein a mounting lug extends from the bottom of the housing, and the mounting lug extends into a mounting groove formed in the top of the connecting seat;

the installation lug is characterized in that guide shafts extend out of the surfaces of the two sides of the installation lug, arc-shaped grooves are formed in the groove walls of the two sides of the installation groove, and the guide shafts penetrate through the arc-shaped grooves and slide along the arc-shaped grooves.

8. The projection warning device of claim 6, wherein one end of the connecting seat facing the base is provided with a circular step groove, and the top end of the base extends into the step groove and rotates in the step groove;

9. The projected warning device of claim 3 or 6, wherein the base is magnetically attached to the vehicle or the base is vacuum attached to the vehicle.

10. The projected warning device of any one of claims 1-8, wherein the projection assembly is attached to an inner wall of the housing, the housing having a light transmissive portion, the projection assembly being positioned in correspondence with the light transmissive portion.

11. The projection warning device of claim 10, wherein the projection assembly comprises a plurality of projection assemblies, and the plurality of projection assemblies are arranged on different parts of the inner wall of the shell along the circumferential direction of the shell.

12. The projected warning device of claim 10, wherein the projection assembly comprises a circuit board and a plurality of point light sources, and the plurality of point light sources are arranged in an array on a side surface of the circuit board facing the light-transmitting portion.

13. The projected warning device of any one of claims 1-8, wherein the projector body further comprises a power cord, one end of the power cord is connected to the projection assembly, and the other end of the power cord is used for connecting with a power supply.

14. The projected warning device of claim 13, wherein the projector body further comprises a battery disposed within the housing, the battery being electrically connected to the power cord.

15. A projected warning system comprising an application module and the projected warning apparatus of any one of claims 1-14;

the application program module is used for being installed on a mobile terminal, and the mobile terminal is in communication connection with the projection warning device.

16. A vehicle comprising the projected warning system of claim 15.