Demisting and self-cleaning device for camera

Abstract

The utility model belongs to the technical field of automobile electronic equipment, and particularly relates to a camera demisting and self-cleaning device for an automobile electronic rearview mirror, which comprises a mirror body, a protective cover, a lens positioning piece and a lens, an electric heating wire is embedded at the edge of the lens, and when water mist appears on the outer side of the lens, the electric heating wire heats the lens to quickly evaporate water, so that the camera can be automatically cleaned. The water mist is prevented from influencing image acquisition of the lens; the heat conduction piece is embedded in the protective cover, heat is transmitted to the heat dissipation piece through the heat conduction column, the heat dissipation piece accelerates heat dissipation through the flow guide groove, and lens operation is prevented from being affected by high temperature. The heat absorption coating, the copper alloy heat conduction piece, the heat conduction column and the aluminum alloy heat dissipation piece are applied, so that the heat conduction and heat dissipation efficiency of the device is improved, and the mechanical strength and durability are enhanced; and the protective cover and the heat dissipation piece as well as the lens positioning piece and the protective cover are stably connected through structural design, so that the stability of each component and the overall performance of the device are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile electronic equipment, and particularly relates to a camera defogging and self-cleaning device. Background Art

[0002] With the advancement of automotive electronics, electronic rearview mirrors are gradually replacing traditional mirrors and becoming a crucial component for safe driving. These mirrors use cameras to capture images behind the vehicle and display them in real time on the in-car display, providing the driver with a clear rearward view. However, cameras are often affected by environmental factors during use, with the formation of mist being a common and significant issue. This mist adheres to the camera lens, blurring the image and severely impacting the rearview mirror's functionality. This problem is particularly acute in high humidity or rainy or foggy weather conditions.

[0003] Existing technologies typically address the water mist problem through chemical coatings or mechanical scraping. However, these methods have limitations. Chemical coatings can lose their effectiveness over time and require regular maintenance and replacement. Mechanical scraping can also cause wear and tear on the lens surface, reducing its lifespan. To address these issues, an efficient and long-lasting solution is crucial. Utility Model Content

[0004] The utility model provides an automobile electronic rearview mirror, which solves the problems in the prior art.

[0005] The technical solution of the present utility model is achieved as follows:

[0006] A camera defogging and self-cleaning device comprises a mirror body, wherein a lens for collecting images is provided at one end of the mirror body away from a vehicle body, and a protective cover is fixedly connected to the end of the mirror body where the lens is located;

[0007] A heat conducting member is embedded in the interior of the protective cover, and the heat conducting member is used to absorb the heat in the protective cover;

[0008] A heat sink is clamped on the top of the protective cover, and the heat sink is in contact with the heat conducting member, and the heat sink is used to conduct heat from the heat conducting member;

[0009] A lens positioning piece is inserted into the open end of the protective cover, and a lens is arranged between the protective cover and the lens positioning piece;

[0010] An electric heating wire for heating is embedded at the edge of the lens.

[0011] Furthermore, a receiving groove is provided on the outer side of the lens, and the heating wire is embedded in the receiving groove.

[0012] Furthermore, a through slot is formed through the top of the protective cover;

[0013] A heat-conducting column is fixedly connected to the top of the heat-conducting member, and the heat-conducting column passes through the through slot;

[0014] The bottom end of the heat sink is provided with a positioning groove matched with the heat conducting column.

[0015] Furthermore, a claw cavity is provided at the bottom end of the heat sink, and a positioning claw engaged with the claw cavity is fixedly connected to the top end of the protective cover, and the positioning claw is set to be L-shaped.

[0016] Furthermore, a heat-absorbing coating is provided on the inner side of the heat-conducting element.

[0017] Furthermore, the longitudinal cross-section of the heat sink is configured to be triangular, and guide grooves are provided at equal intervals on both sides of the heat sink.

[0018] Furthermore, a plug-in slot is formed at one end of the protective cover, and a plug-in post corresponding to the plug-in slot is fixedly connected to one side of the lens positioning member;

[0019] A locking groove is provided on one side of the lens positioning member, and the locking groove is used to limit the position of the lens.

[0020] Furthermore, a turn signal light is provided on the outer side of the mirror body, and a connecting plate is fixedly connected to the other end of the mirror body, and a connecting hole for connecting to the vehicle body is opened through the side surface of the connecting plate.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] By embedding a heating wire at the edge of the lens and embedding it into a receiving groove on the outside of the lens, when water mist appears on the outer surface of the lens, the heating wire can quickly heat the lens. As the heat on the lens increases, the moisture on the lens surface evaporates rapidly, avoiding the influence of water mist on the normal image acquisition of the lens; this design effectively solves the problem of image blur caused by water mist in the existing technology, ensuring the normal operation of the camera in a high humidity environment.

[0023] A heat conductor is embedded inside the protective cover, which transfers heat to the heat sink on the top of the protective cover through the heat-conducting column fixedly connected to the top of the protective cover. The heat sink fits tightly with the heat-conducting column through the positioning groove and accelerates the dissipation of heat through the guide groove. This design not only improves the efficiency of heat conduction and dissipation, but also avoids the lens being affected by high temperature during the heating and defogging process, thereby providing a stable working environment and ensuring the reliability and life of the camera.

[0024] In terms of material selection, the heat-absorbing coating adopts nano-alumina coating, the heat-conducting parts and heat-conducting columns adopt copper alloy materials, and the heat dissipating parts adopt aluminum alloy materials; the application of these high thermal conductivity and durability materials not only improves the thermal conductivity and heat dissipation efficiency of each component, but also enhances the mechanical strength and durability of the device; in particular, the application of the heat-absorbing coating further accelerates the absorption and conduction of heat, ensuring that the heat inside the protective cover can be quickly dissipated and avoiding high temperature accumulation.

[0025] In addition, the protective cover and the heat sink are firmly connected through the claw cavity and the positioning claw, ensuring the stability of the heat sink; the lens positioning part is tightly fitted through the plug-in column and the plug-in slot, and the position of the lens is limited by the positioning slot, ensuring the stability of the lens and the heating effect; this structural design not only improves the overall stability and reliability of the device, but also simplifies the installation process of each component, and enhances the practicality and ease of use of the device.

[0026] In summary, the present invention not only effectively solves the water mist problem and improves the working stability of the camera in high humidity environments through heating with electric heating wires, heat conduction and dissipation by heat conductors and heat sinks, and the application of high-efficiency materials, but also enhances the overall performance and service life of the device through reasonable structural design and material selection, providing an efficient and reliable solution for the stable operation of automotive electronic rearview mirror cameras in various complex environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a structural diagram of the utility model;

[0029] Figure 2 This is a schematic structural diagram of the mirror body of the utility model;

[0030] Figure 3 for Figure 2 A magnified schematic diagram of point A in the middle;

[0031] Figure 4 This is a schematic diagram of the structure of the heat dissipation element of the utility model;

[0032] Figure 5 This is a schematic diagram of the structure of the heat conducting element of the utility model;

[0033] Figure 6 This is a schematic structural diagram of the lens positioning member of the utility model;

[0034] Figure 7 This is a schematic structural diagram of the lens of the present invention.

[0035] In the figure, 1. mirror body; 11. turn signal lamp; 12. connecting plate; 121. connecting hole; 13. protective cover; 131. plug-in slot; 132. through slot; 14. lens; 15. positioning claw; 2. heat sink; 21. positioning slot; 22. claw cavity; 23. guide groove; 3. heat conducting part; 31. heat absorbing coating; 32. heat conducting column; 4. lens positioning part; 41. positioning slot; 42. plug-in column; 5. lens; 51. receiving slot; 52. heating wire. DETAILED DESCRIPTION

[0036] In order to help those skilled in the art better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0037] See Figure 1-7 A camera defogger and self-cleaning device includes a mirror body 1, a lens 14 for capturing images is provided at the end of the mirror body 1 away from the vehicle body, and a protective cover 13 is fixedly connected to the end of the mirror body 1 where the lens 14 is located; a heat conductor 3 is embedded in the interior of the protective cover 13, and the heat conductor 3 is made of a copper alloy material with high thermal conductivity. Copper alloy has excellent thermal conductivity and can quickly absorb and transfer heat, thereby effectively reducing the temperature inside the protective cover 13. The selection of copper alloy material not only improves the thermal conductivity efficiency of the heat conductor 3, but also enhances its mechanical strength and durability, ensuring that it will not deform or damage during long-term use;

[0038] The heat conductor 3 is used to absorb the heat in the protective cover 13; the top of the protective cover 13 is engaged with the heat sink 2, and the heat sink 2 is in contact with the heat conductor 3, and the heat sink 2 is used to conduct the heat from the heat conductor 3; the heat sink 2 is made of aluminum alloy. Aluminum alloy has good thermal conductivity and lightweight properties, and also has high corrosion resistance. The heat sink 2 made of aluminum alloy can effectively increase the heat dissipation surface area and heat conduction path through its large surface area and unique structural design, such as the triangular longitudinal section and the equally spaced guide grooves 23, thereby accelerating the dissipation of heat. The choice of aluminum alloy material not only improves the heat dissipation efficiency of the heat sink 2, but also reduces the overall weight of the device, and improves the durability and reliability of the device.

[0039] A lens positioning member 4 is inserted into the open end of the protective cover 13, and a lens 5 is arranged between the protective cover 13 and the lens positioning member 4; a heating wire 52 for heating is embedded in the edge of the lens 5; when water mist appears on the outer surface of the lens 5, the heating wire 52 will heat the lens 5. As the heat on the lens 5 increases, the moisture on the surface of the lens 5 will be dried, preventing the water mist from affecting the normal image acquisition of the lens 14; in the process of heating the lens 5, the heat generated will increase the temperature of the space inside the protective cover 13, and the heat inside the protective cover 13 will be absorbed by the heat conductor 3 and transferred to the heat sink 2 through the heat conducting column 32 arranged on the top of the heat conductor 3. Finally, the heat will diffuse into the air through the heat sink 2, thereby providing a comfortable environment for the normal operation of the lens 14.

[0040] See Figure 7 A receiving groove 51 is provided on the outer side of the lens 5, and the heating wire 52 is embedded in the receiving groove 51; when the heating wire 52 is energized, it heats the lens 5, causing the water mist on the surface of the lens 5 to evaporate quickly; the design of the receiving groove 51 can not only protect the heating wire 52, but also ensure that the heating wire 52 fits tightly to the lens 5, thereby improving the heating efficiency; through this design, the problem of blurred image caused by water mist on the lens 14 in a high humidity environment is effectively solved.

[0041] See Figure 3-5 A through slot 132 is formed on the top of the protective cover 13; a heat conducting column 32 is fixedly connected to the top of the heat conducting member 3, and the heat conducting column 32 passes through the through slot 132;

[0042] Thermal posts 32 are also made of a highly thermally conductive copper alloy and are meticulously machined to ensure close contact between the heat conductor 3 and the heat sink 2. These copper alloy posts 32 quickly transfer heat absorbed by the heat conductor 3 to the heat sink 2, thereby improving the overall system's heat dissipation efficiency. The surface of the posts 32 undergoes an anti-oxidation treatment to prevent oxidation in high-temperature environments, maintaining long-term thermal conductivity.

[0043] A positioning groove 21 is provided at the bottom end of the heat sink 2 for cooperating with the heat-conducting column 32; the heat-conducting column 32 transfers the heat adsorbed by the heat sink 3 to the heat sink 2, and the heat sink 2 is tightly matched with the heat-conducting column 32 through the positioning groove 21, thereby ensuring that the heat can be efficiently conducted and diffused into the air; this design not only ensures that the lens 14 will not be affected by high temperature during the heating and defogging process, but also improves the overall heat dissipation performance of the device.

[0044] See Figure 3-4A claw cavity 22 is provided at the bottom end of the heat sink 2, and a positioning claw 15 engaged with the claw cavity 22 is fixedly connected to the top of the protective cover 13, and the shape of the positioning claw 15 is set to be L-shaped; the positioning claw 15 is engaged with the claw cavity 22, so that the heat sink 2 can be firmly installed on the top of the protective cover 13; this design not only simplifies the installation process of the heat sink 2, but also enhances the overall stability of the device, ensuring that the heat sink 2 can effectively dissipate heat.

[0045] See Figure 5 The inner side of the heat conducting member 3 is provided with a heat absorbing coating 31; the heat absorbing coating 31 is used to improve the heat absorption efficiency of the heat conducting member 3, thereby accelerating the conduction and dissipation of heat inside the protective cover 13; this design further enhances the defogging and heat dissipation performance of the device, ensuring that the lens 14 can work normally in different environments;

[0046] The heat-absorbing coating 31 is made of a highly efficient heat-absorbing material, such as nano-alumina (Al2O3). Nano-alumina has excellent thermal conductivity and heat absorption capabilities, rapidly absorbing and conducting heat, thereby improving the overall heat absorption efficiency of the heat conductor 3. The uniform coating thickness ensures that heat is quickly conducted into the heat conductor 3, further accelerating the conduction and dissipation of heat within the protective cover 13.

[0047] See Figure 4 The longitudinal section of the heat sink 2 is set to be triangular, and guide grooves 23 are opened at equal intervals on both sides of the heat sink 2; the triangular longitudinal section design increases the surface area of the heat sink 2, thereby improving the heat dissipation efficiency; the guide grooves 23 can guide the air flow, further accelerating the dissipation of heat; this design not only improves the heat dissipation performance of the heat sink 2, but also enhances the overall cooling effect of the device, ensuring the normal operation of the lens 14.

[0048] See Figure 3 and Figure 6 One end of the protective cover 13 is provided with a plug-in slot 131, and one side of the lens positioning member 4 is fixedly connected with a plug-in column 42 corresponding to the plug-in slot 131; one side of the lens positioning member 4 is provided with a clamping slot 41, and the clamping slot 41 is used to limit the position of the lens 5; the plug-in column 42 and the plug-in slot 131 fit closely together to ensure that the lens positioning member 4 can be firmly installed on the protective cover 13, thereby ensuring the stability of the lens 5; the design of the clamping slot 41 can effectively fix the position of the lens 5 and prevent the lens 5 from being displaced during use; this design improves the overall stability of the device and ensures that the lens 14 can capture images normally.

[0049] See Figure 1-2A turn signal 11 is provided on the outside of the mirror body 1, and a connecting plate 12 is fixedly connected to the other end of the mirror body 1. A connecting hole 121 for connecting to the vehicle body is opened through the side of the connecting plate 12; the turn signal 11 can provide an indication of the vehicle's driving direction and improve driving safety; the connecting plate 12 is connected to the vehicle body through the connecting hole 121 to ensure that the device can be firmly installed on the vehicle; this design not only improves the practicality of the device, but also enhances the overall functionality of the vehicle.

[0050] The working principle of this utility model is:

[0051] When water mist appears on the outer surface of the lens 5 during use, the lens 5 is heated by the heating wire 52 located in the receiving groove 51. As the heat on the lens 5 increases, the moisture on the surface of the lens 5 will be dried, thereby preventing the water mist from affecting the normal image acquisition of the lens 14.

[0052] When the receiving groove 51 heats the lens 5, the heat generated will also increase the temperature of the space inside the protective cover 13. At this time, the heat inside the protective cover 13 will be absorbed by the heat conducting member 3 inside the protective cover 13 and transferred to the heat sink 2 through the heat conducting column 32 provided on the top of the heat conducting member 3. The heat sink 2 is outside the heat conducting member 3. Finally, the heat will be diffused into the air through the heat sink 2.

[0053] This can prevent the lens 14 from being in a high temperature environment, thereby providing a comfortable environment for the normal operation of the lens 14.

[0054] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are illustrative only. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should readily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (e.g., size, scale, structure, shape and proportion of various elements, and parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientation changes, etc.).

Claims

1. A camera defogging and self-cleaning device, comprising a lens body (1), characterized in that: A lens (14) for collecting images is provided on the end of the mirror body (1) away from the vehicle body, and a protective cover (13) is fixedly connected to the end of the mirror body (1) where the lens (14) is located; A heat conducting member (3) is embedded in the interior of the protective cover (13), and the heat conducting member (3) is used to absorb heat in the protective cover (13); A heat sink (2) is engaged with the top of the protective cover (13), and the heat sink (2) is in contact with the heat conducting member (3), and the heat sink (2) is used to conduct heat away from the heat conducting member (3); The open end of the protective cover (13) is plugged with a lens positioning piece (4), and a lens (5) is arranged between the protective cover (13) and the lens positioning piece (4); A heating wire (52) for heating is embedded at the edge of the lens (5).

2. The camera defogging and self-cleaning device according to claim 1, characterized in that: An accommodating groove (51) is provided on the outer side of the lens (5), and the heating wire (52) is embedded in the accommodating groove (51).

3. The camera defogging and self-cleaning device according to claim 1, characterized in that: A through slot (132) is formed through the top of the protective cover (13); A heat-conducting column (32) is fixedly connected to the top of the heat-conducting member (3), and the heat-conducting column (32) passes through the through groove (132); The bottom end of the heat sink (2) is provided with a positioning groove (21) that matches the heat-conducting column (32).

4. The camera defogging and self-cleaning device according to claim 3, characterized in that: A claw cavity (22) is provided at the bottom end of the heat sink (2), and a positioning claw (15) engaged with the claw cavity (22) is fixedly connected to the top end of the protective cover (13), wherein the positioning claw (15) is L-shaped.

5. The camera defogging and self-cleaning device according to claim 3, characterized in that: The inner side surface of the heat conducting member (3) is provided with a heat absorbing coating (31).

6. The camera defogging and self-cleaning device according to claim 5, characterized in that: The longitudinal section of the heat dissipation element (2) is arranged in a triangular shape, and guide grooves (23) are provided at equal intervals on both sides of the heat dissipation element (2).

7. The camera defogging and self-cleaning device according to claim 1, characterized in that: One end of the protective cover (13) is provided with a plug-in slot (131), and one side of the lens positioning member (4) is fixedly connected with a plug-in post (42) corresponding to the plug-in slot (131); A locking groove (41) is provided on one side of the lens positioning member (4), and the locking groove (41) is used to limit the position of the lens (5).

8. The camera defogging and self-cleaning device according to claim 1, characterized in that: A turn signal lamp (11) is provided on the outside of the mirror body (1), and a connecting plate (12) is fixedly connected to the other end of the mirror body (1), and a connecting hole (121) for connecting to a vehicle body is provided through the side surface of the connecting plate (12).

Images