Ultrasonic cleaning device, vehicle-mounted camera and vehicle

Abstract

The application provides an ultrasonic cleaning device, comprising: a piezoelectric ceramic sheet, conductive glue and an electrode block, an electrode of the piezoelectric ceramic sheet is connected with one side of the conductive glue, and the other side of the conductive glue is connected with the electrode block. In the above manner, the piezoelectric ceramic sheet is connected with the electrode block through the conductive glue, and the piezoelectric ceramic sheet and the electrode block are not easy to fall off due to the buffering of the conductive glue, so that stable power supply is ensured. The application further provides a vehicle-mounted camera and a vehicle.

Description

Technical Field

[0001] This application relates to the field of vehicle-mounted cameras, and more particularly to an ultrasonic cleaning device, a vehicle-mounted camera, and a vehicle. Background Technology

[0002] With the development of intelligent driving technology, vehicle cameras have become very important sensors on the vehicle. If the camera is covered by dirt, it will seriously affect the vehicle's functions and thus affect driving safety.

[0003] In related technologies, ultrasonic cleaning devices are used in vehicle cameras to achieve cleaning functions. However, existing ultrasonic cleaning devices connect wires to piezoelectric ceramic sheets by welding. During ultrasonic vibration, the welded guide is prone to detaching due to vibration, causing the ultrasonic cleaning device to fail. Utility Model Content

[0004] This application provides an ultrasonic cleaning device to at least partially solve the above-mentioned technical problems.

[0005] To achieve the above objectives, according to a first aspect of this application, an ultrasonic cleaning device is provided, comprising: a piezoelectric ceramic sheet, a conductive adhesive, and an electrode block, wherein the electrode of the piezoelectric ceramic sheet is in contact with one side of the conductive adhesive, and the electrode block is in contact with the other side of the conductive adhesive.

[0006] According to the above method, the piezoelectric ceramic sheet and the electrode block are connected by conductive adhesive. With the buffer of conductive adhesive, the piezoelectric ceramic sheet and the electrode block are not easy to fall off, thus ensuring a continuous and stable power supply.

[0007] Optionally, the electrodes of the piezoelectric ceramic sheet include a positive electrode and a negative electrode, which are disposed on the same side of the piezoelectric ceramic sheet.

[0008] Optionally, the piezoelectric ceramic sheet is flipped so that the positive and negative electrodes are on the same side of the piezoelectric ceramic sheet through an electrode flanging process.

[0009] Optionally, the conductive adhesive includes a positive conductive adhesive and a negative conductive adhesive, wherein the positive conductive adhesive and the negative conductive adhesive do not come into contact with each other.

[0010] Optionally, the positive electrode of the piezoelectric ceramic sheet is in contact with one side of the positive conductive adhesive, and the negative electrode of the piezoelectric ceramic sheet is in contact with one side of the negative conductive adhesive.

[0011] Optionally, the electrode block includes a positive electrode block and a negative electrode block, wherein the positive electrode block is connected to an external positive power supply and the negative electrode block is connected to an external negative power supply.

[0012] Optionally, the positive electrode block is in contact with the other side of the positive conductive adhesive, and the negative electrode block is in contact with the other side of the negative conductive adhesive.

[0013] According to a second aspect of this application, a vehicle-mounted camera is provided, comprising: a lens cover, a lens, a base, and an ultrasonic cleaning device as described in the first aspect of this application, wherein the lens and the ultrasonic cleaning device are in contact connection, the ultrasonic cleaning device is disposed on the base, the lens cover is connected to the base, and the lens and the ultrasonic cleaning device are accommodated within the lens cover.

[0014] Optionally, the lens cap is cylindrical, with an opening on one side to accommodate the lens and the ultrasonic cleaning device and adapted to be connected to the base, and an annular cap on the other side of the cylindrical shape to expose at least part of the lens for shooting while fixing the lens.

[0015] Optionally, the base includes an annular mounting platform with a groove through which the mounting platform is divided into a first mounting section and a second mounting section that do not contact each other.

[0016] Optionally, the first mounting portion is provided with a first groove, which is adapted to accommodate the positive electrode block; the second mounting portion is provided with a second groove, which is adapted to accommodate the negative electrode block.

[0017] Optionally, the first mounting portion is adapted to connect to the other side of the positive conductive adhesive, and to make the positive electrode block contact and connect with the other side of the positive conductive adhesive; the second mounting portion is adapted to connect to the other side of the negative conductive adhesive, and to make the negative electrode block contact and connect with the other side of the negative conductive adhesive.

[0018] According to a third aspect of this application, a vehicle is provided, including the vehicle-mounted camera described in the second aspect.

[0019] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0022] Figure 1 This is an exploded view of the vehicle-mounted camera structure provided in an exemplary embodiment of this application;

[0023] Figure 2 This is a front view of the exploded view of the vehicle-mounted camera structure provided in the exemplary embodiment of this application;

[0024] Figure 3 This is a schematic diagram of a piezoelectric ceramic sheet provided in an exemplary embodiment of this application;

[0025] Figure 4 This is a schematic diagram of the base provided in an exemplary embodiment of this application;

[0026] Figure 5 This is a top view of the base provided in an exemplary embodiment of this application;

[0027] Figure 6 This is a schematic diagram of the vehicle-mounted camera provided in an exemplary embodiment of this application.

[0028] Explanation of reference numerals in the attached figures:

[0029] 110. Piezoelectric ceramic sheet;

[0030] 111. Positive electrode of the piezoelectric ceramic sheet; 112. Negative electrode of the piezoelectric ceramic sheet;

[0031] 121. Positive conductive adhesive; 122. Negative conductive adhesive

[0032] 131. Positive electrode block; 132. Negative electrode block

[0033] 200. Lens cap;

[0034] 300. Lenses;

[0035] 400. Base;

[0036] 411. First installation section; 412. Second installation section;

[0037] 420. Trench;

[0038] 421. First groove; 422. Second groove. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0040] According to the first aspect of this application, referring to Figures 1-2 This application provides an ultrasonic cleaning device, comprising: a piezoelectric ceramic sheet 110, conductive adhesive, and an electrode block, wherein the electrode of the piezoelectric ceramic sheet 110 is in contact with one side of the conductive adhesive, and the electrode block is in contact with the other side of the conductive adhesive.

[0041] In some embodiments, such as Figure 3 As shown, the electrodes of the piezoelectric ceramic sheet 110 include a positive electrode 111 and a negative electrode 112, and the positive electrode 111 and the negative electrode 112 are disposed on the same side of the piezoelectric ceramic sheet 110.

[0042] The piezoelectric ceramic sheet 110 is constructed by flanging the positive electrode 111 and the negative electrode 112 onto the same side of the piezoelectric ceramic sheet.

[0043] In some embodiments, the conductive adhesive includes a positive conductive adhesive 121 and a negative conductive adhesive 122, wherein the positive conductive adhesive 121 and the negative conductive adhesive 122 are not in contact with each other.

[0044] In some embodiments, the positive electrode 111 of the piezoelectric ceramic sheet 110 is in contact with one side of the positive conductive adhesive 121, and the negative electrode 112 of the piezoelectric ceramic sheet 110 is in contact with one side of the negative conductive adhesive 122.

[0045] In some embodiments, the electrode block includes a positive electrode block 131 and a negative electrode block 132, wherein the positive electrode block 131 is connected to an external positive power supply (not shown in the figure), and the negative electrode block 132 is connected to an external negative power supply (not shown in the figure).

[0046] In some embodiments, the positive electrode block 131 is in contact with the other side of the positive conductive adhesive 121, and the negative electrode block 132 is in contact with the other side of the negative conductive adhesive 122.

[0047] In some embodiments, the conductive adhesive is a conductive adhesive that, after curing or drying, can connect multiple conductive materials together, forming an electrical path between the connected materials. Furthermore, the conductive adhesive has a certain deformation capability, tightly mounting the piezoelectric ceramic sheet 110, the conductive adhesive, and the electrode block together. When the piezoelectric ceramic sheet 110 undergoes ultrasonic vibration, the conductive adhesive can filter out some of the vibration while simultaneously transmitting current from the electrode block to the piezoelectric ceramic sheet 110. According to the above method, by connecting the piezoelectric ceramic sheet 110 and the electrode block with conductive adhesive, the conductive adhesive provides cushioning, preventing the piezoelectric ceramic sheet 110 and the electrode block from easily detaching, thus ensuring a continuous and stable power supply.

[0048] According to the second aspect of this application, such as Figure 1 andFigure 2 As shown, a vehicle-mounted camera is provided, including: a lens cover 200, a lens 300, a base 400, and the ultrasonic cleaning device described in the first aspect. The lens 300 and the ultrasonic cleaning device are in contact connection. The ultrasonic cleaning device is disposed on the base 400. The lens cover 200 is connected to the base 400. The lens 300 and the ultrasonic cleaning device are accommodated within the lens cover 200.

[0049] In some embodiments, the lens cap 200 is cylindrical, with an opening on one side to accommodate the lens 300 and the ultrasonic cleaning device and adapted to be connected to the base 400, and an annular cap on the other side of the cylindrical shape to expose at least a portion of the lens 300 for shooting while fixing the lens 300.

[0050] In some embodiments, such as Figure 4 and Figure 5 As shown, the base includes an annular mounting platform with a groove 420 through which the mounting platform is divided into a first mounting part 411 and a second mounting part 412 that do not contact each other.

[0051] In some embodiments, the first mounting portion 411 is provided with a first groove 421, which is adapted to accommodate the positive electrode block 131; the second mounting portion 412 is provided with a second groove 422, which is adapted to accommodate the negative electrode block 132.

[0052] In some embodiments, the first mounting portion 411 is adapted to connect to the other side of the positive conductive adhesive 121, and to make the positive electrode block 131 contact and connect with the other side of the positive conductive adhesive 121; the second mounting portion 412 is adapted to connect to the other side of the negative conductive adhesive 122, and to make the negative electrode block 132 contact and connect with the other side of the negative conductive adhesive 122.

[0053] In some embodiments, such as Figure 6 As shown, the lens cap 200 houses the lens 300 and the ultrasonic cleaning device and is fixed to the base 400. The lens cap 200 and the base are connected by welding.

[0054] In some embodiments, such as Figure 6 As shown, the lens cap 200 houses the lens 300 and the ultrasonic cleaning device and is fixed to the base 400. The lens cap 200 and the base are connected by threads.

[0055] In some embodiments, such as Figure 6As shown, the lens cap 200 houses the lens 300 and the ultrasonic cleaning device and is fixed to the base 400. The lens cap 200 and the base are connected by adhesive.

[0056] In some embodiments, such as Figure 6 As shown, the lens cap 200 houses the lens 300 and the ultrasonic cleaning device and is fixed to the base 400. The lens cap 200 is connected to the base by screws.

[0057] In some embodiments, such as Figure 6 As shown, the lens cap 200 houses the lens 300 and the ultrasonic cleaning device and is fixed to the base 400. The lens cap 200 and the base are connected by a snap-fit.

[0058] In some embodiments, such as Figure 6 As shown, the lens cap 200 houses the lens 300 and the ultrasonic cleaning device and is fixed to the base 400. The lens cap 200 and the base are connected by riveting.

[0059] In some embodiments, when the lens 300 is dirty or fogged up, the lens 300 is vibrated by the ultrasonic vibration of the piezoelectric ceramic sheet 110, thereby removing the dirt or fog from the surface of the lens 300.

[0060] According to a third aspect of this application, a vehicle is provided, including the vehicle-mounted camera described in the second aspect.

[0061] In some embodiments, when water mist, raindrops, or dust adhere to the lens surface, the vehicle driver activates the ultrasonic cleaning function. Electrical energy is transmitted to the piezoelectric ceramic sheet 110 through the electrode block and conductive adhesive. The piezoelectric ceramic sheet 110 converts the electrical energy into vibrational mechanical energy, which is then transmitted to the lens 300. The lens 300 undergoes ultrasonic vibration. The high-frequency and minute vibration causes cavitation or atomization on the surface of the lens 300, making it difficult for water mist, raindrops, and dust to adhere to the lens surface. They will disperse or fall off from the air, achieving the effect of cleaning.

[0062] In some embodiments, when water mist, raindrops, or dust adhere to the lens surface, the vehicle intelligent system automatically identifies the dirt and activates the ultrasonic cleaning function. Electrical energy is transmitted to the piezoelectric ceramic sheet 110 through the electrode block and conductive adhesive. The transducer piezoelectric ceramic sheet 110 converts the electrical energy into vibrational mechanical energy, which is then transmitted to the lens 300. The lens 300 undergoes ultrasonic vibration. The high-frequency and minute vibration causes cavitation or atomization on the surface of the lens 300, making it difficult for water mist, raindrops, and dust to adhere to the lens surface. They will disperse or fall off from the air, achieving the effect of cleaning.

[0063] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0064] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0065] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0066] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. An ultrasonic cleaning device, characterized in that, include: The piezoelectric ceramic sheet, conductive adhesive, and electrode block are provided, wherein the electrode of the piezoelectric ceramic sheet is in contact with one side of the conductive adhesive, and the electrode block is in contact with the other side of the conductive adhesive.

2. The ultrasonic cleaning device according to claim 1, characterized in that, The electrodes of the piezoelectric ceramic sheet include a positive electrode and a negative electrode, which are disposed on the same side of the piezoelectric ceramic sheet.

3. The ultrasonic cleaning device according to claim 2, characterized in that, The piezoelectric ceramic sheet is constructed by flanging the electrodes so that the positive and negative electrodes are flipped onto the same side of the piezoelectric ceramic sheet.

4. The ultrasonic cleaning device according to claim 2, characterized in that, The conductive adhesive includes a positive conductive adhesive and a negative conductive adhesive, and the positive conductive adhesive and the negative conductive adhesive do not come into contact with each other.

5. The ultrasonic cleaning device according to claim 4, characterized in that, The positive electrode of the piezoelectric ceramic sheet is in contact with one side of the positive conductive adhesive, and the negative electrode of the piezoelectric ceramic sheet is in contact with one side of the negative conductive adhesive.

6. The ultrasonic cleaning device according to claim 5, characterized in that, The electrode block includes a positive electrode block and a negative electrode block. The positive electrode block is connected to an external positive power supply, and the negative electrode block is connected to an external negative power supply.

7. The ultrasonic cleaning device according to claim 6, characterized in that, The positive electrode block is in contact with the other side of the positive conductive adhesive, and the negative electrode block is in contact with the other side of the negative conductive adhesive.

8. A vehicle-mounted camera, characterized in that, include: A lens cap, a lens element, a base, and an ultrasonic cleaning device according to any one of claims 1-7, wherein the lens element and the ultrasonic cleaning device are in contact with each other, the ultrasonic cleaning device is mounted on the base, the lens cap is connected to the base, and the lens element and the ultrasonic cleaning device are housed within the lens cap.

9. The vehicle-mounted camera according to claim 8, characterized in that, The lens cap is cylindrical, with an opening on one side to accommodate the lens and the ultrasonic cleaning device and adapted to connect to the base. The other side of the cylindrical cap is provided with an annular cap to expose at least part of the lens for shooting while fixing the lens.

10. The vehicle-mounted camera according to claim 8, characterized in that, The base includes an annular mounting platform with a groove through which the mounting platform is divided into a first mounting section and a second mounting section that do not contact each other.

11. The vehicle-mounted camera according to claim 10, characterized in that, The first mounting portion is provided with a first groove, which is adapted to accommodate the positive electrode block; the second mounting portion is provided with a second groove, which is adapted to accommodate the negative electrode block.

12. The vehicle-mounted camera according to claim 11, characterized in that, The first mounting portion is adapted to connect to the other side of the positive conductive adhesive, and to make the positive electrode block contact and connect with the other side of the positive conductive adhesive; the second mounting portion is adapted to connect to the other side of the negative conductive adhesive, and to make the negative electrode block contact and connect with the other side of the negative conductive adhesive.

13. A vehicle, characterized in that, Includes the vehicle-mounted camera as described in any one of claims 8-12.

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