A product structure for automatically removing frost from the surface of a laser radar window through sealed heating

Abstract

The present invention discloses a product structure in the field of electric vehicle technology for automatically removing frost on the surface of a laser radar window through sealed heating, comprising a laser radar cover and an assembly shell, wherein a motor body is symmetrically installed on both sides of the laser radar cover, an output end of the motor body is fixedly connected to a connecting piece, a gear push rod is fixedly connected to the connecting piece, an end of the gear push rod away from the motor body is fixedly connected to a transmission rod, an end of the transmission rod away from the motor body is fixedly connected to a lower cover, a carbon fiber heating wire is fixedly installed on the lower cover, hot melt adhesive is applied around one side of the lower cover close to the carbon fiber heating wire, and an upper cover is fixedly connected to the side of the hot melt adhesive away from the lower cover, and carbon fiber heating is used for heating, which can well achieve the purpose of fast heating to the required temperature with low energy consumption, and sealed heating of the surface of the laser radar cover avoids heat loss during the heating process.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicles, and in particular to a product structure that automatically removes frost on the surface of a laser radar window through sealed heating. Background Art

[0002] With the rapid development of electric vehicles, in the L3 stage of autonomous driving, millimeter-wave radar measurement technology cannot be widely used in the L3 stage due to its own measurement distance and accuracy limitations. LiDAR can measure within a range of 350m with centimeter accuracy and has become a must-have automotive measurement device. The main factor affecting the measurement of the LiDAR cover is the frost on the surface of the cover. At present, heating wires are mostly used to remove frost from the surface of the radar cover, and there are no actual mass production cases. The limitation of the arrangement of heating wires makes it impossible to remove the frost on the surface of the LiDAR cover, resulting in distortion of transmission and reception. This affects data calculation and thus affects the safety performance of autonomous driving.

[0003] There are few mass-produced cases of laser radar covers with heating to remove frost on the market. The heating method mainly uses heating wires and ITO to heat the product surface, which cannot effectively remove frost on the edge of the laser radar cover window area. In addition, in an extreme environment of -40 degrees, the frost on the edge of the laser radar cover where the ice meets the heating wire can be removed, but the surrounding areas that cannot be heated form a hollow state relative to the product surface, affecting the measurement and analysis of the laser radar cover and posing a safety hazard. Summary of the invention

[0004] The object of the present invention is to provide a product structure that automatically removes frost from the surface of a laser radar window through sealed heating, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a product structure for automatically removing frost on the surface of a laser radar window through sealed heating, comprising a laser radar cover and an assembly shell, characterized in that: a motor body is symmetrically installed on both sides of the laser radar cover, the output end of the motor body is fixedly connected to a connecting piece, a gear push rod is fixedly connected to the connecting piece, the end of the gear push rod away from the motor body is fixedly connected to a transmission rod, the end of the transmission rod away from the motor body is fixedly connected to a lower cover, a carbon fiber heating wire is fixedly installed on the lower cover, hot melt adhesive is applied around one side of the lower cover close to the carbon fiber heating wire, and the hot melt adhesive is fixedly connected to an upper cover on the side away from the lower cover.

[0006] As a further solution of the present invention: the end of the laser radar cover close to the lower cover is fixedly installed with a radar cover window, and the end of the laser radar cover away from the radar cover window is provided with a plurality of wiring slots, and a wiring harness interface is fixedly installed in the wiring slot. When the wiring port on the car is connected to the motor body interface, a heating and rotation signal is output, and the carbon fiber heating wire can reach 70 degrees within 1 minute, quickly remove the frost on itself, and at the same time, after rotation, a sealed environment is formed on the surface of the laser radar window, and the frost on the surface of the radar cover is quickly removed. As the motor rotates, the residual frost on the surface of the laser radar cover can also be wiped off to ensure the cleanliness of the window area, thereby meeting the accuracy of the laser radar cover measurement data, improving the safety factor of autonomous driving, and providing good environmental conditions for laser radar cover data measurement and feedback.

[0007] As a further solution of the present invention: the motor body is fixedly installed in the assembly shell, the lower cover is formed by two-color injection molding, and the materials TPE and PC are combined and molded, wherein TPE is closely fitted to the surface of the laser radar cover to achieve a sealing effect, and the motor body is matched with the gear push rod and the transmission rod. When in use, it can be flipped to the inside of the assembly outer cover to prevent the laser radar cover window area from being affected by obstacles. At the same time, it can be flipped to the surface of the laser radar cover when parking to protect the window area and avoid scratches on the window area.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] 1. In the present invention, the motor body cooperates with the gear push rod and the transmission rod, and can be flipped to the inside of the assembly outer cover when in use, so that the laser radar cover window area is not affected by obstacles. At the same time, it is flipped to the surface of the laser radar cover when parking to protect the window area and avoid scratches on the window area.

[0010] 2. In the present invention, through the cooperation between the carbon fiber heating wire, the lower cover and the upper cover, when the wiring port on the car is connected to the motor body interface, the heating and rotation signals are output, and the carbon fiber heating wire can reach 70 degrees within 1 minute, quickly remove the frost itself, and at the same time, after rotation, form a sealed environment for the laser radar window surface, and quickly remove the frost on the radar cover surface. As the motor rotates, the residual frost on the surface of the laser radar cover can also be wiped off to ensure the cleanliness of the window area, thereby meeting the accuracy of the laser radar cover measurement data, improving the safety factor of autonomous driving, and providing good environmental conditions for laser radar cover data measurement and feedback. When in use, the surface of the laser radar cover is sealed and heated to avoid heat loss during the heating process, thereby improving resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural front view of the present invention;

[0012] Figure 2It is a structural side view of the present invention;

[0013] Figure 3 It is a top view of the structure of the present invention;

[0014] Figure 4 It is a structural explosion diagram of the present invention;

[0015] Figure 5 A cross-sectional view of the structure of the present invention;

[0016] Figure 6 It is a structural side view of the assembly housing of the present invention;

[0017] Figure 7 It is a structural explosion diagram of the carbon fiber heating wire in the present invention.

[0018] In the figure: 1. Upper cover; 2. Carbon fiber heating wire; 3. Lower cover; 4. Transmission rod; 5. Gear push rod; 6. Motor body; 7. LiDAR cover; 8. Wiring harness interface; 9. Radar cover window; 10. Hot melt adhesive; 11. Wiring slot; 12. Connector; 13. Assembly shell. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figures 1 to 7 In the embodiment of the new type, a product structure for automatically removing frost on the surface of a laser radar window by sealing and heating includes a laser radar cover 7 and an assembly shell 13. A motor body 6 is symmetrically installed on both sides of the laser radar cover 7. A connecting piece 12 is fixedly connected to the output end of the motor body 6. A gear push rod 5 is fixedly connected to the connecting piece 12. The end of the gear push rod 5 away from the motor body 6 is fixedly connected to a transmission rod 4. The end of the transmission rod 4 away from the motor body 6 is fixedly connected to a lower cover 3. A carbon fiber heating wire 2 is fixedly installed on the lower cover 3. Hot melt adhesive 10 is applied around one side of the lower cover 3 close to the carbon fiber heating wire 2. The side of the hot melt adhesive 10 away from the lower cover 3 is fixedly connected to an upper cover 1.

[0021] Among them, a radome window 9 is fixedly installed on one end of the laser radome 7 close to the lower cover 3, and a plurality of wiring grooves 11 are opened on the end of the laser radome 7 away from the radome window 9. A wiring harness interface 8 is fixedly installed in the wiring groove 11. When the wiring port on the car is connected to the interface of the motor body 6, heating and rotation signals are output, and the carbon fiber heating wire 2 can reach 70 degrees within 1 minute, quickly removing the frost on itself. At the same time, after rotation, a sealed environment is formed on the surface of the laser radar window to quickly remove the frost on the surface of the radome. As the motor rotates, the residual frost on the surface of the laser radar cover 7 can also be wiped off to ensure the cleanliness of the window area, thereby meeting the accuracy of the laser radar cover 7 measurement data, improving the safety factor of autonomous driving, and providing a good environmental condition for the laser radar cover 7 data measurement and feedback. When in use, the surface of the laser radar cover 7 is sealed and heated to avoid heat loss during the heating process, thereby improving resource utilization; the lower cover 3 is formed by two-color injection molding, and the materials TPE and PC are combined to form a sealing effect, in which TPE and the surface of the laser radar cover 7 are closely fitted to achieve a sealing effect. When in use, it can be flipped to the inside of the assembly cover to prevent the laser radar cover 7 window area from being affected by obstacles. At the same time, it can be flipped to the surface of the laser radar cover 7 when parking to protect the window area and avoid scratches on the window area.

[0022] The working principle of the present invention is: when the wiring port on the car is connected to the interface of the motor body 6, the heating and rotation signals are output, and the carbon fiber heating wire 2 can reach 70 degrees within 1 minute, quickly remove the frost on itself, and at the same time, after rotation, a sealed environment is formed on the surface of the laser radar window, and the frost on the radar cover surface is quickly removed. With the rotation of the motor, the residual frost on the surface of the laser radar cover 7 can also be wiped off to ensure the cleanliness of the window area, thereby meeting the accuracy of the measurement data of the laser radar cover 7, improving the safety factor of automatic driving, and providing good environmental conditions for the data measurement and feedback of the laser radar cover 7. When in use, the surface of the laser radar cover 7 is sealed and heated to avoid heat loss during the heating process, thereby improving resource utilization. When in use, it can be flipped to the inside of the assembly outer cover so that the window area of ​​the laser radar cover 7 is not affected by obstacles. At the same time, when parking, it can be flipped to the surface of the laser radar cover 7 to protect the window area and avoid scratches on the window area.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A product structure for automatically removing frost from the surface of a laser radar window by sealing and heating, comprising a laser radar cover (7) and an assembly housing (13), characterized in that: The laser radar cover (7) is symmetrically mounted with a motor body (6), the output end of the motor body (6) is fixedly connected to a connecting piece (12), the connecting piece (12) is fixedly connected to a gear push rod (5), the end of the gear push rod (5) away from the motor body (6) is fixedly connected to a transmission rod (4), the end of the transmission rod (4) away from the motor body (6) is fixedly connected to a lower cover (3), the lower cover (3) is fixedly mounted with a carbon fiber heating wire (2), and the lower cover (3) is close to the carbon fiber. Hot melt adhesive (10) is applied around one side of the fiber heating wire (2), and the side of the hot melt adhesive (10) away from the lower cover (3) is fixedly connected to the upper cover (1), and the end of the laser radar cover (7) close to the lower cover (3) is fixedly installed with a radar cover window (9), and the end of the laser radar cover (7) away from the radar cover window (9) is provided with a plurality of wiring grooves (11), and a wiring harness interface (8) is fixedly installed in the wiring groove (11), and the motor body (6) is fixedly installed in the assembly housing (13).

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