CN212058756U

CN212058756U - Cursor projection device with sensing detection function

Info

Publication number: CN212058756U
Application number: CN202020618333.1U
Authority: CN
Inventors: 李耀华; 刘军; 马超明
Original assignee: Fusheng Guangdong Automotive Electronics Co ltd
Current assignee: Fusheng Guangdong Automotive Electronics Co ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2020-12-01
Anticipated expiration: 2030-04-22

Abstract

The utility model relates to the technical field of automatic control of a vehicle tail gate, in particular to a cursor projection device with sensing detection, which comprises a front shell and a rear shell which are detachably connected, and also comprises an optical-mechanical assembly and a sensor assembly; a first through hole and a second through hole are formed in the side surface of the rear shell; the optical-mechanical assembly and the sensor assembly are arranged in the rear shell and respectively face the first through hole and the second through hole; the detection range of the sensor assembly completely covers the projection range of the optical machine assembly. The utility model discloses an among the detection device who has solved current rear of a vehicle door automatic control, do not clearly indicate its detection range, lead to the rear of a vehicle door to open the problem of the increase of the degree of difficulty to and lead to the relatively poor problem of response timeliness that the automobile tail door was opened.

Description

Cursor projection device with sensing detection function

Technical Field

The utility model relates to an automatic control technical field of vehicle tail-gate, in particular to cursor projection arrangement with sensing detects.

Background

An automobile generally comprises four basic parts, namely an engine, a chassis, a body and electrical equipment, wherein the automobile body is arranged on a frame of the chassis and used for a driver and passengers to ride or load goods. The automobile body mainly includes: vehicle body housings, vehicle doors, vehicle windows, vehicle front panel parts, interior and exterior vehicle body trim and vehicle body accessories, seats, and ventilation, heating, cooling, air conditioning devices, and the like. When the automobile is assembled, an automobile trunk for loading articles is formed by the rear row seats and the rear end of the automobile body shell in an isolated mode, and a tail door is arranged.

The existing automobile tail door opening mode is usually realized by three modes of electrical opening, key opening and automatic opening, wherein the automatic opening can be realized only based on a corresponding detection device which is mainly used for detecting whether a set detection object exists or not, but in the prior art, the detection range of the detection device does not carry out corresponding indication, the opening difficulty of the automobile tail door is increased, and the response timeliness of the opening of the automobile tail door is poor.

SUMMERY OF THE UTILITY MODEL

The present invention provides a cursor projecting device with sensing detection, which is mainly used to solve the problems of the existing automatic control detection device for the car tail gate that the detection range is not clearly indicated, the difficulty of opening the car tail gate is increased, and the response timeliness of opening the car tail gate is poor.

The utility model provides a cursor projecting device with sensing detection, which comprises a front shell and a rear shell which are detachably connected, and also comprises an optical-mechanical component and a sensor component; a first through hole and a second through hole are formed in the side surface of the rear shell; the optical-mechanical assembly and the sensor assembly are arranged in the rear shell and respectively face the first through hole and the second through hole; the detection range of the sensor assembly completely covers the projection range of the optical machine assembly.

Preferably, the opto-mechanical assembly projects an aperture towards the ground; the central axis of the detection light of the sensor component and the central axis of the projection light of the optical mechanical component are intersected at the central position of the aperture.

Preferably, the center points of the first through hole and the second through hole are located on the same horizontal line.

Preferably, the optical-mechanical assembly comprises an optical machine, a heat sink and a first circuit board; one end part of the optical machine is fixedly arranged on the radiating fin through the first circuit board, and the other end part of the optical machine faces the first through hole; the radiating fins are fixed on the rear shell, and the radiating fins and the first through holes are respectively arranged on the symmetrical end faces of the rear shell after the fixing is completed.

Preferably, the sensor assembly is a TOF sensor assembly, and the TOF sensor assembly is fixedly arranged on the inner bottom surface of the rear shell; the number of the second through holes is two, and the second through holes are arranged side by side; and the transmitting end and the receiving end of the TOF sensor assembly are respectively arranged towards the two second through holes.

The sensor assembly comprises a radar which is fixedly arranged on the inner bottom surface of the rear shell; and the transmitting and receiving end of the radar is arranged towards the second through hole.

Preferably, the device further comprises a first lens and a second lens; the rear shell is provided with a first through hole and a second through hole, and the outer side of the end face of the rear shell, which is provided with the first through hole and the second through hole, is provided with a first mounting frame and a second mounting frame which respectively cover the first through hole and the second through hole; the first lens and the second lens can be arranged in the first mounting frame and the second mounting frame respectively.

Preferably, the electronic device further comprises a second circuit board fixedly arranged on the inner top surface of the front shell.

Preferably, the edge of the upper top surface of the rear shell is provided with annular waterproof silica gel.

From the above, use the utility model provides a technical scheme can obtain following beneficial effect:

first, the utility model provides a cursor projection device, its accessible throws the light ring and indicates the detection range of inductor to the user, helps the user to make the inductor detect opening the instruction fast and accurately, reduces the tail-gate degree of difficulty of opening in the tail-gate automatic control, improves the response timeliness that the tail-gate opened;

secondly, the cursor projection device provided by the utility model horizontally arranges the first through hole and the second through hole, and further horizontally arranges the cursor component and the sensor component, so that the projection range of the cursor component and the detection range of the sensor component are basically consistent, the structure is simple, the assembly time is short, and the production cost is low;

third, the utility model discloses well first lens, second lens and waterproof silica gel's setting makes cursor projection device possess waterproof, dirt-proof function, improves cursor projection device's interference immunity to extension cursor projection device's life.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is an exploded view of a cursor projecting device according to embodiment 1 of the present invention;

fig. 2 is a state diagram of the cursor projecting device according to embodiments 1 and 2 of the present invention.

Description of the drawings: a front case 10; a rear case 20 (a first through hole 21, a second through hole 22); the optical-mechanical assembly 30 (optical-mechanical 31, first circuit board 32, heat sink 33); a sensor assembly 40; a second circuit board 50; waterproof silica gel 60; a first lens 71 and a second lens 72.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

In the existing detection device for automatically controlling the tail gate, the detection range is not clearly indicated, so that the problem of difficulty increase of opening the tail gate is caused, and the problem of poor response timeliness of opening the tail gate of the automobile is caused.

It should be emphasized that the cursor projecting device proposed in embodiments 1 and 2 is mainly installed at the rear end of the vehicle, and the projection range of the opto-mechanical assembly and the detection range of the sensor assembly are mainly concentrated on the ground near the rear end of the vehicle, but the specific installation angle of the cursor projecting device is not limited.

Example 1

As shown in fig. 1 and fig. 2, in order to solve the above problem, the present embodiment provides a cursor projecting device with sensing function, which includes a front housing 10 and a rear housing 20 detachably connected, and further includes an optical-mechanical assembly 30 and a sensor assembly 40; a first through hole 21 and a second through hole 22 are formed in the side surface of the rear shell 20; the optical-mechanical assembly 30 and the sensor assembly 40 are disposed in the rear housing 20 and respectively face the first through hole 21 and the second through hole 22; the detection range of the sensor assembly 40 covers the projection range of the opto-mechanical assembly 30.

In the embodiment, the optical-mechanical assembly 30 projects an indication cursor to guide a user to send a specific opening signal to the indication cursor range, where the specific opening signal is a preset action or a user standing position, such as stepping on the indication cursor, blocking a projection path of the indication cursor, and performing a leg-sweeping action within the indication cursor range, and the opening signal can be customized according to each user, and the opening signal is not limited herein.

In the embodiment, the opening signal of the user is performed within the projection range of the optical mechanical assembly 30, so that the detection range of the sensor assembly 40 completely covers the projection range of the optical mechanical assembly 30, that is, the detection result of the sensor can exactly determine whether the user actually releases the opening signal.

In this embodiment, the light of the optical-mechanical assembly 30 passes through the first through hole 21 and exits the rear housing 20, and smoothly converges to the indication cursor at the preset position, the sensor assembly 40 detects whether the opening signal exists in the indication cursor range through the second through hole 22, so that the optical-mechanical assembly 30 and the sensor assembly 40 are disposed in the rear housing 20 without affecting the proceeding of the above process, and meanwhile, the operating environment of the optical-mechanical assembly 30 and the sensor assembly 40 is ensured, and the service life of the optical-mechanical assembly 30 and the service life of the sensor assembly 40 are further prolonged.

Preferably, but not limited to, when the optical-mechanical assembly 30 and the sensor assembly 40 are installed, light rays of the optical-mechanical assembly 30 and the sensor assembly 40 should pass through the first through hole 21 and the second through hole 22 without being blocked, and therefore, the corresponding emitting ends of the optical-mechanical assembly 30 and the sensor assembly 40 should be disposed as close to the first through hole 21 and the second through hole 22 as possible.

More specifically, the opto-mechanical assembly 30 projects an aperture toward the ground; the central axis of the detecting light of the sensor assembly 40 intersects with the central axis of the projecting light of the optical-mechanical assembly 30 at the central position of the aperture.

In the embodiment, the central axis of the detection light of the sensor element 40 intersects the central axis of the projection light of the optical-mechanical element 30 at the central position of the aperture, so as to ensure that the sensor element 40 can reliably detect the existence of the opening signal at the predetermined position.

More specifically, the center points of the first through hole 21 and the second through hole 22 are located on the same horizontal line.

Preferably, but not limited to, the first through hole 21 is larger than the second through hole 22, and in this embodiment, the end of the emitting end on the optical machine assembly 30 is larger than the emitting end of the sensor assembly 40, so that the first through hole 21 is larger than the second through hole 22 to ensure the correct operation of the pointing cursor in this embodiment.

In this embodiment, the first through hole 21 and the second through hole 22 on the same horizontal line enable the optical-mechanical assembly 30 and the sensor assembly 40 to be installed in a horizontally distributed manner when being installed, so that the utilization rate of the space of the rear housing 20 is greatly ensured, and meanwhile, due to horizontal distribution, that is, the angle setting of the optical-mechanical assembly 30 and the angle setting of the sensor assembly 40 are consistent, the corresponding range of the optical-mechanical assembly 30 and the corresponding range of the sensor assembly 40 can be ensured to be consistent.

More specifically, the optical-mechanical assembly 30 includes an optical-mechanical 31, a heat sink 33 and a first circuit board 32; one end of the optical machine 31 is fixedly arranged on the heat sink 33 through the first circuit board 32, and the other end is arranged towards the first through hole 21; the heat sink 33 is fixed on the rear case 20, and when the fixing is completed, the heat sink 33 and the first through hole 21 are disposed on the symmetrical end surfaces of the rear case 20.

In the embodiment, the optical machine 31 on the optical machine assembly 30 is mainly used for emitting light for forming the indication cursor, the heat sink 33 helps the optical machine 31 to radiate heat, so that the optical machine 31 works at a constant temperature, the service life is prolonged, and the first circuit board 32 provides an electrical connection basis for the optical machine 31.

In the embodiment, the optical machine 31 is transversely disposed through the rear housing 20 to adapt to the shape of the optical machine 31 at the present stage, so as to reduce the volume of the cursor projection device as much as possible and ensure the flexibility of the installation of the cursor projection device.

More specifically, the sensor assembly 40 is a TOF sensor assembly 40, and the TOF sensor assembly 40 is fixedly arranged on the inner bottom surface of the rear shell 20; two second through holes 22 are arranged side by side; the transmitting end and the receiving end of the TOF sensor assembly 40 are respectively disposed toward the two second through holes 22.

In this embodiment, the TOF sensor assembly 40 fixed to the inner bottom surface of the rear housing 20 is vertically installed, such that the emitting end and the receiving end are horizontally disposed, which ensures that the detection range of the TOF sensor assembly 40 in this embodiment is substantially consistent with the projection range of the optical mechanical assembly 30, and simultaneously ensures that the TOF sensor assembly 40 and the optical mechanical assembly 30 are not affected by each other when the installation is completed, and the size of the cursor projection device is greatly reduced.

In this embodiment, the TOF sensor emits modulated near-infrared light, which is reflected when encountering an object, and the sensor converts the distance of the shot into the room by calculating the time difference or phase difference between the light emission and the reflection to generate depth information. Therefore, in this embodiment, the transmitting end and the receiving end need to transmit and receive through the second through hole 22, respectively.

More specifically, the lens further comprises a first lens 71 and a second lens 72; the rear shell 20 is provided with a first through hole 21 and a second through hole 22, and a first mounting frame and a second mounting frame respectively covering the first through hole 21 and the second through hole 22 are arranged on the outer sides of the end surfaces of the rear shell; the first lens 71 and the second lens 72 can be respectively disposed in the first mounting frame and the second mounting frame.

In the embodiment, on the premise of ensuring the normal operation of the cursor projecting device, the first lens 71 and the second lens 72 prevent moisture and dust from entering the rear housing 20 to affect the normal operation process of the opto-mechanical assembly 30 or the sensor assembly 40.

Preferably, but not limited to, the first and second mounting frames are mainly configured to set mounting positions for the first and

second lenses

71 and 72, and after the first and

second lenses

71 and 72 are fixed by bonding, the first and

second lenses

71 and 72 are perfectly embedded in the first and second mounting frames, so that the outer side of the end surface of the rear housing 20 is kept flat.

More specifically, the second circuit board 50 is fixedly disposed on the inner top surface of the front case 10.

In this embodiment, the second circuit board 50 is mainly used to supply power to the TOF sensor assembly 40, and since the TOF sensor assembly 40 is vertically mounted, the TOF sensor assembly 40 is more conveniently electrically connected to the second circuit board 50 by being fixed on the inner top surface of the front housing 10.

More specifically, a ring-shaped waterproof silicone rubber 60 is disposed at the edge of the upper top surface of the rear case 20.

In this embodiment, the waterproof silicone rubber 60 is mainly used to prevent moisture from permeating along the joint between the front housing 10 and the rear housing 20, so as to ensure the dryness of the internal environment of the rear housing 20.

Example 2

As shown in fig. 1 and fig. 2, in order to solve the foregoing problems, the present embodiment provides a cursor projecting device with sensing function, which also includes a front housing 10, a rear housing 20, an optical-mechanical assembly 30, a sensor assembly 40, a second circuit board 50, a waterproof silicone 60, a first lens 71 and a second lens 72; the arrangement position of the structure is the same as that of embodiment 1, and the installation relationship is also the same as that of embodiment 1, which is not described herein again.

The sensor assembly 40 in this embodiment includes a radar (not shown), and the radar is fixedly disposed on the inner bottom surface of the rear case 20; the transmitting and receiving end of the radar is disposed toward the second through hole 22 (although the fixing position and fixing manner of the radar in this embodiment are the same as those in embodiment 1, and refer to fig. 1).

Preferably, an ultrasonic sensor in the reversing radar is selected as the sensor component of the embodiment, and whether a target appears in the current detection range or not and whether a corresponding opening signal is sent or not is detected through an electromagnetic wave detection technology of the radar.

Preferably, but not limited to, the sensor assembly 40 may also adopt a camera, and an image in the detection range is acquired by the camera, and then whether an on signal appears in the current detection range is determined by a corresponding automatic identification technology.

To sum up, this embodiment 1 and embodiment 2 provide a cursor projection device with sensing detection, which is mainly used for projecting a cursor by being provided with an optical-mechanical component, and is further provided with a sensor component for detecting whether an opening signal is released, and transmitting a control signal to an external controller through a detection result, so that the difficulty of the process of automatically opening the tailgate is reduced, and the timeliness response process of automatically opening is ensured.

The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.

Claims

1. A cursor projecting device with sensing, characterized by: the device comprises a front shell, a rear shell, an optical-mechanical assembly and a sensor assembly, wherein the front shell and the rear shell are detachably connected; a first through hole and a second through hole are formed in the side surface of the rear shell; the optical-mechanical assembly and the sensor assembly are arranged in the rear shell and respectively face the first through hole and the second through hole; the detection range of the sensor assembly completely covers the projection range of the optical machine assembly.

2. A cursor projecting device with sensing of claim 1, wherein: the optical-mechanical assembly projects an aperture to the ground; the central axis of the detection light of the sensor component and the central axis of the projection light of the optical mechanical component are intersected at the central position of the aperture.

3. A cursor projecting device with sensing of claim 2, wherein: the center points of the first through hole and the second through hole are located on the same horizontal line.

4. A cursor projecting device with sensing of claim 3, wherein: the optical-mechanical component comprises an optical machine, a radiating fin and a first circuit board; one end part of the optical machine is fixedly arranged on the radiating fin through the first circuit board, and the other end part of the optical machine faces the first through hole; the radiating fins are fixed on the rear shell, and the radiating fins and the first through holes are respectively arranged on the symmetrical end faces of the rear shell after the fixing is completed.

5. A cursor projecting device with sensing of claim 3, wherein: the sensor assembly is a TOF sensor assembly, and the TOF sensor assembly is fixedly arranged on the inner bottom surface of the rear shell; the number of the second through holes is two, and the second through holes are arranged side by side; and the transmitting end and the receiving end of the TOF sensor assembly are respectively arranged towards the two second through holes.

6. A cursor projecting device with sensing of claim 3, wherein: the sensor assembly comprises a radar which is fixedly arranged on the inner bottom surface of the rear shell; and the transmitting and receiving end of the radar is arranged towards the second through hole.

7. A cursor projecting device with sensing detection according to claim 4, 5 or 6, characterized in that: the lens also comprises a first lens and a second lens; the rear shell is provided with a first through hole and a second through hole, and the outer side of the end face of the rear shell, which is provided with the first through hole and the second through hole, is provided with a first mounting frame and a second mounting frame which respectively cover the first through hole and the second through hole; the first lens and the second lens can be arranged in the first mounting frame and the second mounting frame respectively.

8. A cursor projecting device with sensing of claim 7, wherein: the second circuit board is fixedly arranged on the inner top surface of the front shell.

9. A cursor projecting device with sensing of claim 8, wherein: and the edge of the upper top surface of the rear shell is provided with annular waterproof silica gel.