CN-122002651-A - Heating assembly and vehicle-mounted camera system

CN122002651ACN 122002651 ACN122002651 ACN 122002651ACN-122002651-A

Abstract

A heating assembly and a vehicle-mounted camera system are provided, wherein the heating assembly comprises an electric heating plate, a main heat conduction layer, a first insulating layer covering the main heat conduction layer, a secondary heat conduction layer covering the first insulating layer and a driving power supply. The electric heating plate comprises a glass layer, a transparent conductor layer arranged on the glass layer and a decorative layer arranged between the glass layer and the transparent conductor layer. The decoration layer defines a light-transmitting window area and a light-non-transmitting area. The main heat conduction layer comprises two electric connectors which are respectively arranged on two opposite sides of the transparent conductor layer. The transparent conductor layer has a first line impedance between the electrical connectors. The secondary thermally conductive layer comprises an opaque metal or metal composition, forms a patterned continuous wiring corresponding to the decorative layer, and at least partially overlaps the primary thermally conductive layer. The secondary thermally conductive layer has a second line impedance that is matched to the first line impedance. The driving power supply applies driving voltage to the main heat conduction layer and the auxiliary heat conduction layer in parallel connection. In addition to increasing the heatable area of the heating assembly, different dual-mode heating modes are achieved by the main heat conduction layer and the auxiliary heat conduction layer respectively.

Inventors

LIU TINGYING
ZHENG TAISHI
LIN WEIYI
Han Anlun
XU FENGCHENG

Assignees

祥达光学（厦门）有限公司

Dates

Publication Date: 20260508
Application Date: 20241106

Claims (10)

1. A heating assembly, comprising: an electric hot plate comprising: A glass layer; A transparent conductor layer disposed on the glass layer, and A decorative layer between the glass layer and the transparent conductor layer, defining a transparent window area and an opaque area; The main heat conduction layer comprises two electric connectors which are respectively arranged on two opposite sides of the transparent conductor layer, wherein the transparent conductor layer is provided with a first line impedance between the two electric connectors; A first insulating layer covering the main heat conduction layer; A sub-thermal conductive layer comprising an opaque metal or metal composition and covering the first insulating layer, wherein the sub-thermal conductive layer forms a patterned continuous wiring corresponding to the decorative layer and at least partially overlaps the main thermal conductive layer in a stacking direction relative to the main thermal conductive layer, the sub-thermal conductive layer having a second line impedance matching the first line impedance, and A driving power supply for applying driving voltage to the main heat conduction layer and the auxiliary heat conduction layer in parallel.
2. The heating assembly of claim 1, wherein the primary thermally conductive layer is configured to enable a first heating mode to uniformly heat the optically transparent window region when energized, and the secondary thermally conductive layer is configured to enable a second heating mode to heat the optically opaque region when energized and to be used concurrently with the first heating mode.
3. The heating assembly of claim 1, wherein the two electrical connectors each have a resistance of less than about 1 ohm.
4. The heating assembly of claim 1, wherein the first line impedance is about 25 ohms to about 35 ohms.
5. The heating assembly of claim 1, wherein the second line impedance is about 3% to 5% different from the first line impedance.
6. The heating assembly of claim 1, wherein the light transmissive window has two opposite edges, and the two electrical connectors at least partially overlap the two edges in the stacking direction, respectively.
7. A heating assembly as set forth in claim 1, further comprising: A first anti-reflection layer disposed on a side of the glass layer away from the transparent conductor layer, and The second anti-reflection layer is arranged on one side of the transparent conductor layer far away from the glass layer.
8. The heating assembly of claim 7, further comprising a hydrophobic coating disposed on a side of the first anti-reflective layer remote from the glass layer.
9. The heating assembly of claim 1, further comprising a second insulating layer covering the secondary thermally conductive layer.
10. A vehicle-mounted image pickup system, comprising: a heating assembly as claimed in any one of claims 1 to 9, and And the lens is positioned at one side of the electric heating plate where the main heat conducting layer is arranged and aligned with the light-transmitting window area in the stacking direction.

Description

Heating assembly and vehicle-mounted camera system Technical Field The disclosure relates to a heating assembly and a vehicle-mounted camera system. Background A Light Detection AND RANGING (Light Detection) system is a technology that measures the distance or shape of an object using Light. Light access systems find application in many fields, including autopilot, drone, topography and environmental monitoring. However, the light access system is disturbed by various environmental factors in practical applications, wherein the influence of moisture and ice on the light access system is particularly remarkable. For example, small particles in moisture or ice scatter the laser light, resulting in loss of some of the light energy and even failure to return to the receiver, thereby reducing the accuracy of the measurement. The water molecules may also have an absorption effect on the laser light, in particular light of a specific wavelength, which may further attenuate the returned laser signal. Light rays can be refracted when passing through moisture or ice, so that the propagation path of the light rays is changed, and measurement errors are caused. The laser may also be reflected multiple times in moisture or ice to produce multiple echoes, making it difficult for the light reaching system to accurately determine the distance of the target object. Therefore, how to provide a heating assembly and a vehicle-mounted camera system capable of solving the above problems is one of the problems to be solved by the research and development resources in the industry. Disclosure of Invention Accordingly, an objective of the present disclosure is to provide a heating assembly and a vehicle-mounted camera system that can solve the above-mentioned problems. In order to achieve the above object, according to one embodiment of the present disclosure, a heating assembly includes an electric heating plate, a main heat guiding layer, a first insulating layer, a sub heat guiding layer, and a driving power source. The electric heating plate comprises a glass layer, a transparent conductor layer and a decorative layer. The transparent conductor layer is arranged on the glass layer. The decoration layer is positioned between the glass layer and the transparent conductor layer and defines a light-transmitting window area and a light-non-transmitting area. The main thermal conductive layer comprises two electrical connectors. The electric connectors are respectively arranged on two opposite sides of the transparent conductor layer. The transparent conductor layer has a first line impedance between the electrical connectors. The first insulating layer covers the main thermally conductive layer. The secondary thermal conductive layer comprises an opaque metal or metal composition and covers the first insulating layer. The auxiliary heat conduction layer forms a patterned continuous wiring corresponding to the decorative layer and at least partially overlaps the main heat conduction layer in a stacking direction relative to the main heat conduction layer. The secondary thermally conductive layer has a second line impedance that is matched to the first line impedance. The driving power supply applies driving voltage to the main heat conduction layer and the auxiliary heat conduction layer in parallel connection. In one or more embodiments of the present disclosure, the main thermal conductive layer is configured to enable the first heating mode to uniformly heat the transparent window region when powered on. The secondary thermal conductive layer is configured to enable the second heating mode to raise the temperature of the opaque region when energized and is used concurrently with the first heating mode. In one or more embodiments of the present disclosure, each of the two electrical connectors has a resistance of less than about 1 ohm. In one or more embodiments of the present disclosure, the first line impedance is about 25 ohms to about 35 ohms. In one or more embodiments of the present disclosure, the second line impedance is about 3% to 5% different from the first line impedance. In one or more embodiments of the present disclosure, the transparent window has two opposite edges. The two electric connectors are at least partially overlapped with the two edges respectively in the stacking direction. In one or more embodiments of the present disclosure, the heating assembly further includes a first anti-reflective layer and a second anti-reflective layer. The first anti-reflection layer is arranged on one side of the glass layer far away from the transparent conductor layer. The second anti-reflection layer is arranged on one side of the transparent conductor layer far away from the glass layer. In one or more embodiments of the present disclosure, the heating assembly further comprises a hydrophobic coating. The hydrophobic coating is arranged on one side of the first anti-reflection layer away from the glass layer. In one or mor