Vehicle-mounted camera with cleaning function

Abstract

The utility model relates to a vehicle-mounted camera with a cleaning function, which comprises a camera front cover and a camera rear cover, the camera rear cover is positioned at the rear end of the camera front cover and is connected with the camera front cover, the front end of the camera front cover is provided with an installation cavity and a first concave cavity which is concavely arranged towards the camera rear cover, and the installation cavity is provided with a cleaning cavity. The camera front cover is internally provided with a mounting cavity, the mounting cavity is located at the periphery of the first concave cavity, a lens group is arranged in the first concave cavity, the lens group partially extends out of the first concave cavity, the camera front cover is also internally provided with piezoelectric ceramics and a lens, the piezoelectric ceramics are mounted in the mounting cavity and are located at the periphery of the lens group, the lens is located at the front side of the lens group, and the lens is located at the front side of the lens group. The camera front cover is provided with a mounting cavity, the periphery of the lens extends into the mounting cavity and is in contact with the piezoelectric ceramic, the rear end of the camera front cover is provided with a circuit board, the piezoelectric ceramic is electrically connected with the circuit board, the camera further comprises a photosensitive chip and a power supply chip which are used for collecting environment images, and the photosensitive chip and the power supply chip are electrically connected with the circuit board. By adopting the technical scheme, the utility model provides the vehicle-mounted camera with the cleaning function, and the vehicle-mounted camera can be cleaned under the conditions of mud, ice, snow, rainwater and the like in the use process of the vehicle-mounted camera, so that the vehicle-mounted camera can maintain the function of continuously shooting images.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted cameras, in particular to a vehicle-mounted camera with a cleaning function. Background Art

[0002] The camera has wide application and low cost, making it an important component of the Advanced Driver Assistance System (ADAS). The camera power supply is connected to the reversing taillight. When the reverse gear is engaged, the camera is powered synchronously and enters the working state, sending the collected video information to the wireless receiver placed at the front of the car through the wireless transmitter. The receiver transmits the video information to the GPS navigator through the AVIN interface. In this way, when the receiver receives the signal, no matter what kind of operation interface the GPS navigator is in, the LCD screen will be provided for the reversing image video first.

[0003] Car cameras play a key role in car perception. To ensure that car cameras can still work normally in various environments (mud, ice, snow, rain), camera cleaning technology has developed accordingly. At present, the cleaning methods on the market include water flow, air flow, or a combination of these, but these devices are relatively large and costly, and maintenance requires manpower and corresponding cleaning fluids, which results in high maintenance costs. Summary of the invention

[0004] Purpose of the utility model: In order to overcome the defects of the prior art, the utility model provides a vehicle-mounted camera with a cleaning function, which can clean the camera when encountering mud, ice and snow, rain, etc. during the use of the vehicle-mounted camera, so that it can maintain the function of continuing to take images.

[0005] The technical solution of the utility model is as follows: a vehicle-mounted camera with a cleaning function, comprising a camera front cover and a camera rear cover, the camera rear cover is located at the rear end of the camera front cover and connected to the camera front cover, the front end of the camera front cover is provided with an installation cavity and a first concave cavity recessed toward the camera rear cover, the installation cavity is located at the outer periphery of the first concave cavity, a lens group is provided in the first concave cavity, and the lens group partially extends out of the first concave cavity, piezoelectric ceramics and lenses are also provided in the camera front cover, the piezoelectric ceramics are installed in the installation cavity, and the piezoelectric ceramics are located at the outer periphery of the lens group, the lens is located on the front side of the lens group, the outer periphery of the lens extends into the installation cavity and contacts with the piezoelectric ceramics, a circuit board is provided at the rear end of the camera front cover, the piezoelectric ceramics are electrically connected to the circuit board, and also includes a photosensitive chip and a power chip for collecting environmental images, and the photosensitive chip and the power chip are electrically connected to the circuit board.

[0006] By adopting the above technical solution, the photosensitive chip collects images of the environment and confirms whether the lens is dirty based on the image. If there is dirt, the signal is transmitted to the piezoelectric ceramic, which converts it into mechanical energy to stimulate the lens to vibrate, so that the dirt on the lens falls off. This can be used to clean the camera when encountering mud, ice, snow, rain, etc. during the use of the vehicle-mounted camera, so that it can maintain the function of continuing to take images, and the camera is smaller than the traditional vehicle-mounted camera cleaning device.

[0007] The utility model is further configured as follows: a receiving cavity is further provided at the front end of the camera front cover, the receiving cavity is located at the front side of the first concave cavity and is communicated with the first concave cavity, the lens group extends into the receiving cavity, the mounting cavity is located at the outer periphery of the receiving cavity, the outer periphery of the lens is located in the mounting cavity, a chamber is provided at the rear end of the camera front cover, and the circuit board is installed in the chamber.

[0008] With the above further configuration, the structure is compact, so that the overall structure of the vehicle-mounted camera is small.

[0009] The utility model is further configured as follows: the piezoelectric ceramic is arranged in a ring shape, the lower end surface of the piezoelectric ceramic is in contact with the bottom wall of the mounting cavity, the upper end surface of the piezoelectric ceramic is spaced from the top wall of the mounting cavity to form a notch, and the outer periphery of the lens is inserted into the mounting cavity from the notch and in contact with the piezoelectric ceramic.

[0010] With the above further configuration, the structure is stable, the lens can be bonded to the piezoelectric ceramic by glue, and the stains on the surface of the lens can be removed by the vibration of the piezoelectric ceramic.

[0011] The present invention is further provided with: a flexible flat cable, which is arranged in the chamber and connected between the piezoelectric ceramic and the circuit board.

[0012] The above further configuration is adopted to facilitate the connection between the piezoelectric ceramic and the circuit board.

[0013] The present invention is further configured as follows: a second cavity is provided at the rear end of the camera rear cover and is recessed toward the camera front cover; a connector is provided in the second cavity, and an end of the connector extends out of the second cavity.

[0014] With the above configuration being further adopted, the connector adopts a FAKRA connector to facilitate signal transmission.

[0015] The utility model is further configured as follows: a connecting block is provided at the rear end of the camera front cover, and a connecting groove is correspondingly provided at the front end of the camera rear cover, and the connecting block is inserted into the connecting groove.

[0016] By adopting the above-mentioned further arrangement, the structure is simple and the installation is convenient. After the connecting block is inserted into the connecting groove, it can be fixed by welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional view of a specific embodiment of the utility model;

[0018] Figure 2 for Figure 1 Enlarged view of part A. DETAILED DESCRIPTION

[0019] The technical scheme in this embodiment will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] It should be noted that in the description of the present invention, all directional indications (such as up, down, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] In addition, the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. In the description of the present invention, the meaning of "several" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0022] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that technical personnel in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0023] like Figure 1-2As shown, a vehicle-mounted camera with a cleaning function includes a camera front cover 1 and a camera rear cover 2, wherein the camera rear cover 2 is located at the rear end of the camera front cover 1 and connected to the camera front cover 1, a mounting cavity 11 and a first concave cavity 12 recessed toward the camera rear cover 2 are provided at the front end of the camera front cover 1, the mounting cavity 11 is located at the periphery of the first concave cavity 12, a lens group 3 is provided in the first concave cavity 12, and a portion of the lens group 3 extends out of the first concave cavity 12, a piezoelectric ceramic 4 and a lens 5 are further provided in the camera front cover 1, the piezoelectric ceramic 4 is installed in the mounting cavity 11, and the piezoelectric ceramic 4 is located at the periphery of the lens group 3, the lens 5 is located at the front side of the lens group 3, the outer periphery of the lens 5 extends into the mounting cavity 11 and contacts with the piezoelectric ceramic 4, a circuit board 6 is provided at the rear end of the camera front cover 1, the piezoelectric ceramic 4 is electrically connected to the circuit board 6, and also includes a useful The photosensitive chip and the power chip for collecting environmental images are electrically connected to the circuit board 6 to reduce the wiring harness between the camera and the control circuit. The photosensitive chip and the power chip are welded on the circuit board 6. The photosensitive chip collects images of the environment and transmits them to the electronic controller ECU after converting them into electronic information to determine whether there is dirt on the lens. If there is dirt, according to the dirt level, the power chip is controlled to transmit the signal to the piezoelectric ceramic 4 with a preset current and frequency. The piezoelectric ceramic 4 converts it into mechanical energy to stimulate the lens 5 to vibrate, so that the dirt on the lens 5 falls off, and different cleaning modes can be started according to the specific situation of the dirt. The camera can be cleaned in the event of mud, ice, snow, rain, etc. during use, so that it can maintain the function of continuing to take images, and the camera is smaller than the traditional vehicle camera cleaning device.

[0024] The front end of the camera front cover 1 is also provided with a receiving cavity 13, the receiving cavity 13 is located in front of the first concave cavity 12 and communicates with the first concave cavity 12, the lens group 3 extends into the receiving cavity 13, the mounting cavity 11 is located at the periphery of the receiving cavity 13, the outer periphery of the lens 5 is located in the mounting cavity 11, and the rear end of the camera front cover 1 is provided with a cavity 14, the circuit board 6 is mounted in the cavity 14, the structure is compact, and the overall structure of the vehicle-mounted camera is small. The piezoelectric ceramic 4 is arranged in an annular shape, the lower end face of the piezoelectric ceramic 4 is in contact with the bottom wall of the mounting cavity 11, the upper end face of the piezoelectric ceramic 4 is spaced from the top wall of the mounting cavity 11 to form a notch 10, the outer periphery of the lens 5 is inserted into the mounting cavity 11 from the notch 10 and contacts the piezoelectric ceramic 4, the structure is stable, the lens 5 can be bonded to the piezoelectric ceramic 4 by glue, and the stains on the surface of the lens 5 can be removed by the vibration of the piezoelectric ceramic 4.

[0025] A flexible flat cable 7 is also included. The flexible flat cable 7 is arranged in the chamber 14 and connected between the piezoelectric ceramic 4 and the circuit board 6 to facilitate wiring between the piezoelectric ceramic 4 and the circuit board 6 .

[0026] The rear end of the camera rear cover 2 is provided with a second cavity 21 recessed toward the camera front cover 1, and a connector 8 is provided in the second cavity 21, and the end of the connector 8 extends outside the second cavity 21. The connector 8 adopts a FAKRA connector to facilitate signal transmission. The camera rear cover 2 is installed on the vehicle body, and a connecting block is provided at the rear end of the camera front cover 1, and a connecting groove is correspondingly provided at the front end of the camera rear cover 2. The connecting block is inserted in the connecting groove, and the camera front cover is sealed and connected with the camera rear cover, which has a simple structure and is easy to install. After the connecting block is inserted in the connecting groove, it can be fixed by welding, which can be laser welding, ultrasonic welding, or fixed by screws.

Claims

1. A vehicle-mounted camera with a cleaning function, characterized in that: The invention comprises a camera front cover (1) and a camera rear cover (2), wherein the camera rear cover (2) is located at the rear end of the camera front cover (1) and is connected to the camera front cover (1), the front end of the camera front cover (1) is provided with a mounting cavity (11) and a first cavity (12) which is recessed in the direction of the camera rear cover (2), the mounting cavity (11) is located at the outer periphery of the first cavity (12), a lens group (3) is provided in the first cavity (12), and a portion of the lens group (3) extends out of the first cavity (12), and the camera front cover (1) is also provided with a piezoelectric ceramic (4) and a lens (5), wherein the piezoelectric ceramic (4) is installed in the installation cavity (11), and the piezoelectric ceramic (4) is located at the periphery of the lens group (3), the lens (5) is located at the front side of the lens group (3), the outer periphery of the lens (5) extends into the installation cavity (11) and contacts the piezoelectric ceramic (4), a circuit board (6) is provided at the rear end of the camera front cover (1), the piezoelectric ceramic (4) is electrically connected to the circuit board (6), and also includes a photosensitive chip and a power chip for collecting environmental images, and the photosensitive chip and the power chip are electrically connected to the circuit board (6).

2. The vehicle-mounted camera with cleaning function according to claim 1, characterized in that: The front end of the camera front cover (1) is further provided with a receiving cavity (13), the receiving cavity (13) is located in front of the first concave cavity (12) and communicates with the first concave cavity (12), the lens group (3) extends into the receiving cavity (13), the mounting cavity (11) is located at the periphery of the receiving cavity (13), the outer periphery of the lens (5) is located in the mounting cavity (11), and the rear end of the camera front cover (1) is provided with a chamber (14), and the circuit board (6) is mounted in the chamber (14).

3. The vehicle-mounted camera with cleaning function according to claim 2, characterized in that: The piezoelectric ceramic (4) is arranged in a ring shape, the lower end surface of the piezoelectric ceramic (4) is in contact with the bottom wall of the mounting cavity (11), the upper end surface of the piezoelectric ceramic (4) is spaced from the top wall of the mounting cavity (11) to form a notch (10), and the outer periphery of the lens (5) is inserted into the mounting cavity (11) from the notch (10) and in contact with the piezoelectric ceramic (4).

4. The vehicle-mounted camera with cleaning function according to claim 2 or 3, characterized in that: Also included is a flexible flat cable (7), wherein the flexible flat cable (7) is arranged in the chamber (14) and connected between the piezoelectric ceramic (4) and the circuit board (6).

5. The vehicle-mounted camera with cleaning function according to claim 1, 2 or 3, characterized in that: A second cavity (21) is provided at the rear end of the camera rear cover (2) and is recessed toward the camera front cover (1); a connector (8) is provided in the second cavity (21); an end of the connector (8) extends outside the second cavity (21).

6. The vehicle-mounted camera with cleaning function according to claim 1, 2 or 3, characterized in that: A connection block is provided at the rear end of the camera front cover (1), and a connection groove is correspondingly provided at the front end of the camera rear cover (2), wherein the connection block is inserted into the connection groove.

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