A camera device with ultrasonic vibration

Abstract

The present invention relates to a camera device with ultrasonic vibration, which includes a housing, a lens module, and an ultrasonic generating module. The lens module and the ultrasonic generating module are arranged in the housing. The housing is provided with a lens hole for the lens module to take pictures. The lens hole is configured with a light-transmitting protection screen. The ultrasonic generating module includes an ultrasonic transducer, and the ultrasonic transducer is in direct or indirect contact with the light-transmitting protection screen to transmit the ultrasonic waves and ultrasonic vibrations generated by the ultrasonic transducer to the light-transmitting protection screen.

Description

Technical Field

[0001] The present invention relates to the technical field of imaging devices, and in particular to an imaging device with ultrasonic vibration. Background Art

[0002] In existing imaging devices, especially vehicle-mounted or surveillance imaging devices, due to the lack of cleaning of the lens and the protective glass in front of the lens, the lens is prone to adhering dust after long-term use, resulting in a decrease in the clarity of the captured images. In particular, for dashcam imaging devices placed outside the vehicle or surveillance imaging devices outdoors, they are not only prone to adhering dust but also easily blurred by rainwater on rainy days, resulting in poor shooting effects. Summary of the Invention

[0003] In view of the above situation, it is necessary to propose an imaging device with ultrasonic vibration that can avoid dirt or rain and fog.

[0004] To solve the above technical problems, the technical solution adopted by the present invention is: an imaging device with ultrasonic vibration, including a housing, a lens module, and an ultrasonic generating module. The lens module and the ultrasonic generating module are arranged in the housing. The housing is provided with a lens hole for the lens module to take pictures. The lens hole is configured with a light-transmitting protection screen. The ultrasonic generating module includes an ultrasonic transducer, and the ultrasonic transducer is in direct or indirect contact with the light-transmitting protection screen to transmit the ultrasonic waves and ultrasonic vibrations generated by the ultrasonic transducer to the light-transmitting protection screen.

[0005] Further, the ultrasonic generating module further includes a conduction sheet, and the conduction sheet is in close contact with the light-transmitting protection screen.

[0006] Further, the light-transmitting protection screen extends inward with an inner convex portion, and the conduction sheet is provided with a sleeve hole, and the conduction sheet is sleeved on the inner convex portion.

[0007] Further, the conduction sheet is annularly arranged between the ultrasonic transducer and the light-transmitting protection screen, and the surfaces of the ultrasonic transducer, the conduction sheet, and the light-transmitting protection screen are in close contact.

[0008] Further, the ultrasonic generating module further includes a protection seat and a protective film; the protection seat is arranged at the front end of the lens module, the protection seat is provided with a receiving groove, the ultrasonic transducer is arranged in the receiving groove, and the protective film is attached to the side of the ultrasonic transducer facing away from the conduction sheet.

[0009] Further, the ultrasonic transducer is provided with a central hole, the aperture of the central hole is larger than that of the lens module, and the ultrasonic transducer is sleeved outside the lens module.

[0010] Further, a main board is disposed inside the housing, and the main board is electrically connected to the lens module and the ultrasonic generating module.

[0011] Further, the housing includes a mounting base and a rear cover. One side of the mounting base is open, and a lens hole is provided on the other side of the mounting base. The rear cover is hermetically connected to the mounting base.

[0012] Further, a rain drop sensor is further included, and the rain drop sensor is electrically connected to the main board.

[0013] Further, a timer is further included, and the main board is electrically connected to the timer.

[0014] The beneficial effects of the present invention are as follows: The ultrasonic generating module generates ultrasonic waves and ultrasonic vibrations. Since the ultrasonic transducer is in direct or indirect contact with the light-transmitting protection screen, the ultrasonic waves and ultrasonic vibrations can be transmitted to the light-transmitting protection screen, thereby cleaning the dirt, rain fog, and water droplets on the light-transmitting protection screen, maintaining the cleanliness of the light-transmitting protection screen, and thus ensuring the quality of viewfinding and shooting. Especially on rainy days, rainwater can be prevented from adhering to the light-transmitting protection screen, so that the imaging device can clearly shoot in rainy days. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an exploded structural schematic diagram of an imaging device with ultrasonic vibration according to an embodiment of the present invention;

[0016] Figure 2 is an external structural schematic diagram of an imaging device with ultrasonic vibration according to an embodiment of the present invention;

[0017] Figure 3 is a structural schematic diagram of a lens hole of an imaging device with ultrasonic vibration according to an embodiment of the present invention;

[0018] Figure 4 is an exploded structural schematic diagram of an imaging device with ultrasonic vibration according to another embodiment of the present invention;

[0019] Figure 5 is an exploded structural schematic diagram of an imaging device with ultrasonic vibration according to still another embodiment of the present invention.

[0020] Reference Signs:

[0021] 100, housing; 110, mounting base; 111, lens hole; 120, rear cover; 121, sealing ring;

[0022] 200, lens module; 310, ultrasonic transducer; 320, protection seat; 321, receiving groove;

[0023] 330, protective film; 340, conduction sheet; 400, main board; 500, light-transmitting protection screen. Detailed implementation manners

[0024] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further describes in detail a camera device with ultrasonic vibration according to the present invention in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] Please refer to Figures 1 - 5 , a camera device with ultrasonic vibration, including a housing 100, a lens module 200 and an ultrasonic generating module. The lens module 200 and the ultrasonic generating module are arranged in the housing 100. The housing 100 is provided with a lens hole 111 for the lens module 200 to take pictures. The lens hole 111 is configured with a light-transmitting protection screen 500. The ultrasonic generating module includes an ultrasonic transducer 310. The ultrasonic transducer 310 is in direct or indirect contact with the light-transmitting protection screen 500 to transmit the ultrasonic waves and ultrasonic vibrations generated by the ultrasonic transducer 310 to the light-transmitting protection screen 500.

[0026] The ultrasonic generating module generates ultrasonic waves and ultrasonic vibrations. Since the ultrasonic transducer 310 is in direct or indirect contact with the light-transmitting protection screen 500, the ultrasonic waves and ultrasonic vibrations can be transmitted to the light-transmitting protection screen 500, thereby cleaning the dirt, rain, fog and water droplets on the light-transmitting protection screen 500, keeping the light-transmitting protection screen 500 clean, and thus ensuring the quality of the viewfinder shooting. Especially in rainy days, rainwater can be prevented from adhering to the light-transmitting protection screen 500, so that the camera device can clearly shoot in rainy days.

[0027] Preferably, the ultrasonic transducer 310 adopts a piezoelectric ceramic sheet or a piezoelectric ceramic ring.

[0028] Please refer to Figure 1 , the ultrasonic generating module further includes a conduction sheet 340. The conduction sheet 340 is in close contact with the light-transmitting protection screen 500. Simply, the ultrasonic transducer 310 can be adhesively connected to the conduction sheet 340. The material of the conduction sheet 340 is generally a hard material and has excellent ultrasonic conduction performance, and generally adopts a metal, such as copper, copper alloy or titanium alloy, etc.

[0029] Preferably, please refer to Figure 1 and Figure 4 , the light-transmitting protection screen 500 extends inward with an inner convex portion. The conduction sheet 340 is provided with a sleeve hole, and the conduction sheet 340 is sleeved on the inner convex portion. Or, as another implementation manner of the present invention, please refer to Figure 5 , the conduction sheet 340 is annularly arranged between the ultrasonic transducer 310 and the light-transmitting protection screen 500, and the surfaces of the ultrasonic transducer 310, the conduction sheet 340 and the light-transmitting protection screen 500 are closely attached.

[0030] Please refer toFigure 4 and Figure 5 The ultrasonic generating module further includes a protective seat 320 and a protective film 330. The protective seat 320 is provided at the front end of the lens module 200. An accommodation groove 321 is provided in the protective seat 320. The ultrasonic transducer 310 is disposed in the accommodation groove 321. The protective film 330 is attached to the side of the ultrasonic transducer 310 facing away from the conduction sheet 340. The protective seat 320 and the protective film 330 are provided to protect the ultrasonic transducer 310 from being damaged. In particular, the protective cover is made of rubber material and is in interference connection with the lens module 200. The rubber material can prevent ultrasonic waves from being transmitted to the lens module 200 and affecting the lens, so that the protective cover can seal the ultrasonic transducer 310 in cooperation with the protective film 330.

[0031] Please refer to Figure 1 、 Figure 4 and Figure 5 The ultrasonic transducer 310 is provided with a central hole. The aperture of the central hole is larger than that of the lens module 200. The ultrasonic transducer 310 is sleeved outside the lens module 200. This avoids contact between the ultrasonic transducer 310 and the lens module 200 and can uniformly transmit ultrasonic waves to the conduction sheet 340 and / or the light-transmitting protective screen 500.

[0032] Please refer to Figure 1 、 Figure 4 and Figure 5 A main board 400 is further disposed in the housing 100. The main board 400 is electrically connected to the lens module 200 and the ultrasonic generating module. It can be understood that the main board 400 is a PCB circuit board, and integrated circuits can be specifically configured thereon according to needs.

[0033] Please refer to Figure 1 、 Figure 4 and Figure 5 A circuit hole is further provided on the housing 100. The main board 400 is connected with a power supply line and a transmission line. The power supply line and the transmission line pass through the circuit hole. That is, power is supplied from the outside, which is convenient for long-term use of the imaging device. Simply, a battery can also be disposed in the housing 100 and used for power supply. It can also be used together with external power connection. The battery is used as a backup and is activated to supply power when there is a power outage.

[0034] Please refer to Figure 1 、 Figure 4 and Figure 5, the housing 100 includes a mounting base 110 and a rear cover 120. One side of the mounting base 110 is open, and a lens hole 111 is provided on the other side of the mounting base 110. The rear cover 120 is hermetically connected to the mounting base 110. Briefly, the rear cover 120 is provided with a convex edge, and a sealing ring 121 is sleeved on the convex edge. The convex edge and the sealing ring 121 are hermetically sleeved with the mounting base 110. Briefly, in order to improve the connection stability, the rear cover 120 can also be snap-connected or screwed to the mounting base 110. Please refer to Figure 2 , the circuit hole is arranged on the rear cover 120.

[0035] Particularly, an ultrasonic insulation protective cover is provided outside the lens module 200. The ultrasonic insulation protective cover is made of an ultrasonic poor conductor, such as rubber, to prevent the ultrasonic wave of the ultrasonic generating device from being transmitted to the lens module 200. Preferably, there is a gap between the lens module 200 and the light-transmitting protective screen 500.

[0036] Particularly, it further includes a rain drop sensor, and the rain drop sensor is electrically connected to the main board 400. By setting the rain drop sensor, the ultrasonic generating module can be automatically started when it rains, and the power of the ultrasonic generating module can be adjusted according to the amount of rainfall to ensure the shooting effect in rainy days. Generally, the rain drop sensor is installed on or outside the housing 100. Preferably, the rain drop sensor is a light-sensitive rain drop sensor.

[0037] Preferably, it further includes a timer, and the main board 400 is electrically connected to the timer. By setting the timer, it is convenient to start the ultrasonic generating module regularly as needed.

[0038] In summary, a camera device with ultrasonic vibration provided by the present invention, the ultrasonic generating module generates ultrasonic waves and ultrasonic vibrations. Since the ultrasonic transducer can uniformly transmit the ultrasonic waves and ultrasonic vibrations to the light-transmitting protective screen through the conduction sheet, the dirt on the light-transmitting protective screen can be cleaned, the lens hole and the light-transmitting protective screen are kept clean, thereby ensuring the shooting quality. Especially in rainy days, rainwater can be prevented from adhering to the light-transmitting protective screen, so that the camera device can be used for cleaning and shooting in rainy days.

[0039] The above are only the preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An imaging device with ultrasonic vibration, characterized in that, it includes a housing, a lens module and an ultrasonic generating module. The lens module and the ultrasonic generating module are arranged in the housing. The housing is provided with a lens hole for the lens module to take pictures. The lens hole is configured with a light-transmitting protective screen. The ultrasonic generating module includes an ultrasonic transducer. The ultrasonic transducer is in direct or indirect contact with the light-transmitting protective screen to transmit the ultrasonic waves and ultrasonic vibrations generated by the ultrasonic transducer to the light-transmitting protective screen; The ultrasonic generating module further includes a conductive sheet, and the conductive sheet is in close contact with the light-transmitting protective screen; The ultrasonic transducer is adhesively connected to the conductive sheet; The light-transmitting protective screen extends inwards with an inner convex part, and the conductive sheet is provided with a sleeve hole, and the conductive sheet is sleeved on the inner convex part; Or, The conductive sheet is annularly arranged between the ultrasonic transducer and the light-transmitting protective screen, and the surfaces of the ultrasonic transducer, the conductive sheet and the light-transmitting protective screen are closely attached; The ultrasonic generating module further includes a protective seat and a protective film; the protective seat is arranged at the front end of the lens module, the protective seat is provided with a receiving groove, the ultrasonic transducer is arranged in the receiving groove, and the protective film is attached to the side of the ultrasonic transducer facing away from the conductive sheet; The protective seat is made of rubber material and is in interference connection with the lens module. The protective seat and the protective film are provided with a central hole for the lens module to take pictures; The ultrasonic transducer is provided with a central hole, the aperture of the central hole is larger than that of the lens module, and the ultrasonic transducer is sleeved outside the lens module.

2. The imaging device with ultrasonic vibration according to claim 1, characterized in that, a main board is further arranged in the housing, and the main board is electrically connected to the lens module and the ultrasonic generating module.

3. The imaging device with ultrasonic vibration according to claim 1, characterized in that, the housing includes a mounting seat and a rear cover. One side of the mounting seat is open, the other side of the mounting seat is provided with the lens hole, and the rear cover is hermetically connected to the mounting seat.

4. The imaging device with ultrasonic vibration according to claim 2, characterized in that, it further includes a rain drop sensor, and the rain drop sensor is electrically connected to the main board.

5. The imaging device with ultrasonic vibration according to claim 2, characterized in that, it further includes a timer, and the main board is electrically connected to the timer.

Images