CN219016668U

CN219016668U - Quick defogging optical device

Info

Publication number: CN219016668U
Application number: CN202122971687.1U
Authority: CN
Inventors: 韩妮; 米士隆; 陈吕望; 陈乔熙
Original assignee: Dongguan Yutong Automobile Vision Co ltd
Current assignee: Dongguan Yutong Automobile Vision Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2023-05-12
Anticipated expiration: 2031-11-30
Also published as: WO2023098696A1

Abstract

The utility model relates to the technical field of vehicle-mounted lenses, and discloses a quick defogging optical device, which comprises: the mounting frame is arranged in a cylindrical structure; a first lens which is arranged at one end of the through hole of the mounting frame, and an electrothermal layer is coated on one surface of the first lens facing the mounting frame and/or the periphery of the first lens; the electric heating device comprises an electric heating layer, an electric conduction element and a power supply module, wherein one end of the electric conduction element is electrically connected with the electric heating layer through conductive adhesive, the other end of the electric conduction element is electrically connected with the power supply module, the power supply module supplies power to the electric heating layer so that the electric heating layer heats, and heat is transferred to the first lens when the electric heating layer heats. The quick defogging optical device provided by the utility model can quickly and effectively solve the problem of water vapor condensation on the first lens, and avoid deformation of the first lens caused by welding high temperature.

Description

Quick defogging optical device

Technical Field

The utility model relates to the technical field of vehicle-mounted lenses, in particular to a quick defogging optical device.

Background

With the popularization of automation and intellectualization of automobiles, the requirements on the image definition of the vehicle-mounted lens are higher and higher. In the automatic driving technology of the automobile, the vehicle-mounted lens is used as an eye of the automobile, in the application process, the definition cannot be blurred, otherwise, the program judgment error can occur, and the automobile destruction and the human death are seriously involved. In the use process of the vehicle-mounted lens, the part with the largest temperature difference on the lens is a lens with the lens end in contact with the outside, and if the temperature difference between the inside and the outside of the vehicle-mounted lens is large or the vehicle-mounted lens is in an environment with high humidity, water mist or water drops can appear on the lens inside the lens, so that an image formed by the lens becomes fuzzy, and the driving safety is seriously influenced. At present, most of on-vehicle lenses in the market utilize the sealing property to eliminate fog in the lenses, the fog eliminating time is slower, the driving safety is influenced, and the customer experience effect is poor.

Therefore, a fast defogging optical device is needed to quickly eliminate or prevent fog or water drops from being generated inside the lens, so as to solve the problem of image blurring.

Disclosure of Invention

Based on the above, the present utility model aims to provide a fast defogging optical device, which can fast and effectively solve the problem of water vapor condensation on a first lens, and avoid deformation of the first lens caused by high welding temperature.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

provided is a fast defogging optical device, including:

the mounting frame is arranged in a cylindrical structure;

a first lens which is arranged at one end of the through hole of the mounting frame, and an electrothermal layer is coated on one surface of the first lens facing the mounting frame and/or the periphery of the first lens;

the electric heating device comprises an electric heating layer, an electric conduction element and a power supply module, wherein one end of the electric conduction element is electrically connected with the electric heating layer through conductive adhesive, the other end of the electric conduction element is electrically connected with the power supply module, the power supply module supplies power to the electric heating layer so that the electric heating layer heats, and heat is transferred to the first lens when the electric heating layer heats.

As an optional technical scheme of quick defogging optical device, the one end of first lens orientation outside the installation picture frame sets up to first outer convex surface, the first lens orientation the through-hole one end of installation picture frame includes first concave surface and heating surface, first concave surface set up in the central zone of first lens, the heating surface set up to planar structure and around locating the week of first concave surface, the electrothermal layer coating in on the heating surface.

As an optional technical scheme of the quick defogging optical device, the conductive element adopts conductive wires, the conductive wires are provided with two, two wiring terminals are correspondingly arranged on the electric heating layer, the two wiring terminals are respectively connected with one ends of the two conductive wires through conductive adhesive, and the other ends of the two conductive wires are respectively connected with the positive electrode and the negative electrode of the power supply module.

As an optional technical scheme of quick defogging optical device, power supply module locates the installation picture frame is kept away from the one end of first lens, be equipped with two in the installation picture frame along the axial run through the through-hole of stepping down of installation picture frame, two the electrically conductive line wears to locate respectively in the two the through-hole of stepping down.

As an optional technical scheme of quick defogging optical device, the week portion of first lens with the inseparable butt of inner wall of installation picture frame, the week portion of first lens is equipped with the seal groove, be equipped with the sealing washer in the seal groove, the sealing washer is used for shutoff first lens with install the space between the picture frame.

As an optional technical scheme of quick defogging optical device, quick defogging optical device still includes the second lens, the second lens set up in the through-hole of installation picture frame, the week portion of second lens with the inner wall butt of installation picture frame, the second lens is located first lens orientation one side of the through-hole of installation picture frame, the second lens orientation one end of first lens sets up to the outer convex surface of second, the second lens deviates from one end of first lens sets up to the concave surface in the second.

As an optional technical scheme of quick defogging optical device, quick defogging optical device still includes third lens and fourth lens, third lens with the fourth lens set up side by side in the through-hole of installation picture frame, and all be located the second lens deviates from one side of first lens, third lens with the fourth lens all with the inner wall butt of installation picture frame.

As an optional technical scheme of quick defogging optical device, still be equipped with the spacer ring between the third lens with the fourth lens, the middle part of spacer ring is equipped with the light-passing hole, be equipped with the leaded light ladder structure on the inner wall of light-passing hole.

As an optional technical scheme of quick defogging optical device, quick defogging optical device still includes the sensitization chip, the sensitization chip is located the installation picture frame is kept away from the one end of first lens.

As an optional technical scheme of the fast defogging optical device, the fast defogging optical device further comprises an optical filter, wherein the optical filter is arranged in the through hole of the mounting frame, and the optical filter is positioned between the first lens and the photosensitive chip.

As an alternative solution of the fast defogging optical device, the electrothermal layer adopts a conductive ink layer.

The beneficial effects of the utility model are as follows:

the quick defogging optical device provided by the utility model can automatically heat the first lens, when the first lens is required to be heated, the power supply module supplies power to the electric heating layer coated on the first lens through the conductive element and the conductive adhesive, the electric heating layer heats after being electrified, heat is conducted to the first lens, the first lens is promoted to heat, fog beads attached to the first lens can be vaporized and dissipated after the first lens is heated, and water vapor can be prevented from being liquefied and condensed into fog beads on the first lens, so that the problem of water vapor condensation of the quick defogging optical device can be quickly and effectively solved. The conductive adhesive is used as one of the intermediate pieces for supplying power to the electric heating layer by the power supply module, the curing temperature of the conductive adhesive is far lower than the welding temperature of more than 200 ℃ for tin-lead welding, the material deformation and the formation of internal stress possibly caused by high welding temperature are avoided, and meanwhile, the curing process is simple, the operation is easy, and the processing of a miniaturized device is facilitated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic diagram of a fast defogging optical device according to the present utility model.

In the figure:

1. installing a glasses frame; 101. a relief through hole; 2. a first lens; 201. a first concave surface; 202. a heating surface; 203. sealing grooves; 3. an electric heating layer; 4. a conductive element; 5. a power supply module; 6. conducting resin; 7. a second lens; 8. a third lens; 9. a fourth lens; 10. a photosensitive chip; 11. a spacer ring; 111. a light-transmitting hole; 112. a light guiding step structure; 12. a light filter; 13. and (3) sealing rings.

Detailed Description

In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

As shown in fig. 1, the present embodiment provides a fast defogging optical device, which may be a vehicle lens, an optical lampshade, etc., and has the functions of actively defogging and defrosting and preventing fogging. That is, when the quick defogging optical device is in a continuous overcast, rainy, frosted, or alternate hot and cold environment, the quick defogging optical device can actively defog and defrost as well as prevent fogging to ensure reliability of its optical performance.

Specifically, the quick defogging optical device in the present embodiment is a vehicle-mounted lens, and includes a mounting frame 1, a first lens 2, a conductive element 4, and a power supply module 5. The installation picture frame 1 sets up to tubular structure, and first lens 2 are installed in the through-hole one end of installation picture frame 1, and the electric heat layer 3 has been coated towards the one side of installation picture frame 1 and/or the week portion of first lens 2 to first lens 2, and the one end and the electric heat layer 3 of conductive element 4 are connected through electric conduction glue 6 electricity, and the other end and the power supply module 5 electricity of conductive element 4 are connected, and power supply module 5 is to electric heat layer 3 power supply so that electric heat layer 3 generates heat, and heat is transferred to first lens 2 when electric heat layer 3 generates heat.

Specifically, the quick defogging optical device can independently heat the first lens 2, when the first lens 2 is required to be heated, the power supply module 5 supplies power to the electric heating layer 3 coated on the first lens 2 through the conductive element 4 and the conductive adhesive 6, the electric heating layer 3 heats after being electrified, heat is conducted to the first lens 2, the temperature of the first lens 2 is promoted to rise, fog beads attached to the first lens 2 can be vaporized and dissipated after the temperature of the first lens 2 rises, and water vapor can be prevented from being liquefied and condensed on the first lens 2 to form fog beads, so that the water vapor condensation problem of the quick defogging optical device is solved quickly and effectively. The conductive adhesive 6 is used as one of the intermediate pieces for supplying power to the electric heating layer 3 by the power supply module 5, the curing temperature of the conductive adhesive 6 is far lower than the welding temperature of more than 200 ℃ for tin-lead welding, the deformation of materials and the formation of internal stress possibly caused by high welding temperature are avoided, and meanwhile, the curing process is simple, the operation is easy, and the processing of a miniaturized device is facilitated.

It should be noted that, the power supply module 5 in this example is fixed and connected with other parts of the vehicle lens through a lens base (not shown in the figure), and the lens base is configured by adopting a conventional lens base structure, which belongs to common knowledge, and the specific structure thereof is not described herein.

Preferably, the conductive adhesive 3 is conductive silver adhesive, and may be gold-based conductive adhesive, carbon-based conductive adhesive or copper-based conductive adhesive.

Optionally, the end of the first lens 2 facing the outside of the mounting frame 1 is configured as a first outer convex surface, the end of the first lens 2 facing the through hole of the mounting frame 1 includes a first inner concave surface 201 and a heating surface 202, the first inner concave surface 201 is disposed in a central area of the first lens 2, the heating surface 202 is configured as a planar structure and is wound around a peripheral portion of the first inner concave surface 201, and the electrothermal layer 3 is coated on the heating surface 202. For imaging purposes, the first concave surface 201 on the outer and inner sides of the first lens 2 needs to be kept transparent to allow light to pass through, and the electrothermal layer 3 can be applied to the peripheral and edge regions.

Optionally, the conductive element 4 adopts conductive wires, the conductive wires are provided with two, two wiring terminals are correspondingly arranged on the electric heating layer 3, the two wiring terminals are respectively connected with one ends of the two conductive wires through the conductive adhesive 6, and the other ends of the two conductive wires are respectively connected with the positive electrode and the negative electrode of the power supply module 5. In other embodiments, other conductive members such as sheet metal may be used for the conductive element 4.

Preferably, the electrothermal layer 3 is made of a conductive ink layer, and may also be made of an ITO layer, graphene or metal mesh. The conductive ink layer can conduct the conductive wires at two ends on one hand and can generate heat when being electrified on the other hand.

Further, the power supply module 5 is arranged at one end of the mounting frame 1 far away from the first lens 2, two abdicating through holes 101 penetrating through the mounting frame 1 along the axial direction are arranged in the mounting frame 1, and two conducting wires are respectively arranged in the two abdicating through holes 101 in a penetrating mode.

Optionally, the week portion of first lens 2 closely abuts with the inner wall of installation picture frame 1, and the week portion of first lens 2 is equipped with seal groove 203, is equipped with sealing washer 13 in the seal groove 203, and sealing washer 13 is used for shutoff first lens 2 and the space between the installation picture frame 1 to outside water vapor separation is outside first lens 2, reduces the inside humidity of first lens 2, guarantees defogging efficiency.

Preferably, the wall of the sealing groove 203 is also coated with the electrothermal layer 3.

Optionally, the quick defogging optical device further includes a photosensitive chip 10, the photosensitive chip 10 is disposed at one end of the mounting frame 1 far away from the first lens 2, and the photosensitive chip 10 is configured to receive light passing through the through hole of the mounting frame 1.

Preferably, the power supply module 5 is arranged at intervals at the other end of the mounting frame 1 far away from the first lens 2, the power supply module 5 comprises a circuit board, the photosensitive chip 10 is arranged on the circuit board, the photosensitive chip 10 is opposite to the central axis of the mounting frame 1, and light passes through the through hole of the mounting frame 1 and then reaches the photosensitive chip 10.

Optionally, the quick defogging optical device further includes a second lens 7, the second lens 7 is disposed in the through hole of the mounting frame 1, the periphery of the second lens 7 is abutted to the inner wall of the mounting frame 1, the second lens 7 is disposed on one side of the first lens 2 facing the through hole of the mounting frame 1, one end of the second lens 7 facing the first lens 2 is disposed as a second outer convex surface, one end of the second lens 7 facing away from the first lens 2 is disposed as a second inner concave surface, i.e. the main body portion of the second lens 7 is disposed as a crescent lens structure.

Preferably, the first lens 2 and the second lens 7 are abutted against each other so that heat is conducted between the first lens 2 and the second lens 7, and the effect of synchronous temperature rise during heating is realized. Specifically, because moisture may exist in the gap between the first lens 2 and the second lens 7, although fluctuation of the temperature of the second lens 7 along with the change of the air temperature is less obvious than that of the first lens 2, fog beads may be condensed on the second lens 7, so that the first lens 2 and the second lens 7 are abutted against each other, and the first lens 2 can conduct heat to the second lens 7, so that the second lens 7 is heated up along with the fog removal effect on the second lens 7.

Optionally, the quick defogging optical device further includes a third lens 8 and a fourth lens 9, the third lens 8 and the fourth lens 9 are arranged in the through hole of the mounting frame 1 side by side, and are both located at one side of the second lens 7 deviating from the first lens 2, and the third lens 8 and the fourth lens 9 are both in butt joint with the inner wall of the mounting frame 1.

Optionally, a spacer ring 11 is further disposed between the third lens 8 and the fourth lens 9, a light-passing hole 111 is disposed in the middle of the spacer ring 11, and a light-guiding step structure 112 is disposed on an inner wall of the light-passing hole 111 and used for adjusting the incident direction of light.

Optionally, the fast defogging optical device further includes an optical filter 12, the optical filter 12 is disposed in the through hole of the mounting frame 1, the optical filter 12 is disposed between the first lens 2 and the photosensitive chip 10, and the optical filter 12 is used for screening out light of a required wavelength band.

Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims

1. A fast defogging optical device, comprising:

the mounting frame (1) is arranged in a cylindrical structure;

a first lens (2) mounted at one end of the through hole of the mounting frame (1), wherein an electrothermal layer (3) is coated on one surface of the first lens (2) facing the mounting frame (1) and/or the periphery of the first lens (2);

the electric heating device comprises a conductive element (4) and a power supply module (5), wherein one end of the conductive element (4) is electrically connected with an electric heating layer (3) through conductive adhesive (6), the other end of the conductive element (4) is electrically connected with the power supply module (5), the power supply module (5) supplies power to the electric heating layer (3) so that the electric heating layer (3) heats, and the electric heating layer (3) transfers heat to a first lens (2) when heating.

2. The quick defogging optical device according to claim 1, wherein an end of said first lens (2) facing beyond said mounting frame (1) is provided as a first outer convex surface, a through hole end of said first lens (2) facing said mounting frame (1) comprises a first inner concave surface (201) and a heating surface (202), said first inner concave surface (201) is provided in a central area of said first lens (2), said heating surface (202) is provided as a planar structure and is wound around a peripheral portion of said first inner concave surface (201), and said electric heating layer (3) is coated on said heating surface (202).

3. The quick defogging optical device according to claim 1, wherein said conductive element (4) is a conductive wire, said conductive wire is provided with two, said electric heating layer (3) is provided with two terminals correspondingly, said two terminals are respectively connected with one ends of said two conductive wires through said conductive adhesive (6), and the other ends of said two conductive wires are respectively connected with the positive electrode and the negative electrode of said power supply module (5).

4. A quick defogging optical device according to claim 3, wherein said power supply module (5) is arranged at one end of said mounting frame (1) far away from said first lens (2), two yielding through holes (101) penetrating said mounting frame (1) along the axial direction are arranged in said mounting frame (1), and two conductive wires are respectively arranged in said two yielding through holes (101).

5. The quick defogging optical device according to claim 1, wherein the circumference of said first lens (2) is tightly abutted to the inner wall of said mounting frame (1), the circumference of said first lens (2) is provided with a sealing groove (203), a sealing ring (13) is provided in said sealing groove (203), said sealing ring (13) is used for sealing the gap between said first lens (2) and said mounting frame (1).

6. The quick defogging optical device according to claim 1, further comprising a second lens (7), said second lens (7) being arranged in the through hole of said mounting frame (1), a peripheral portion of said second lens (7) being in abutment with an inner wall of said mounting frame (1), said second lens (7) being arranged on a side of said first lens (2) facing said through hole of said mounting frame (1), an end of said second lens (7) facing said first lens (2) being arranged as a second outer convex surface, an end of said second lens (7) facing away from said first lens (2) being arranged as a second inner concave surface.

7. The quick defogging optical device according to claim 6, further comprising a third lens (8) and a fourth lens (9), said third lens (8) and said fourth lens (9) being arranged side by side in a through hole of said mounting frame (1) and being both located at a side of said second lens (7) facing away from said first lens (2), said third lens (8) and said fourth lens (9) being both in abutment with an inner wall of said mounting frame (1).

8. The quick defogging optical device according to claim 7, wherein a spacer ring (11) is further arranged between the third lens (8) and the fourth lens (9), a light passing hole (111) is arranged in the middle of the spacer ring (11), and a light guiding step structure (112) is arranged on the inner wall of the light passing hole (111).

9. The quick defogging optical device according to claim 1, further comprising a light sensing chip (10), wherein said light sensing chip (10) is arranged at an end of said mounting frame (1) remote from said first lens (2).

10. A fast defogging optical device according to claim 1, wherein said electro-thermal layer (3) is a conductive ink layer.